O Calvário das secas by Eloy de Souza - 1983 - 192 pages
O desenvolvimento do nordeste árido by Rafael Alvargonzález Cruz - 1981
O desenvolvimento do nordeste árido by Rafael Alvargonzález Cruz - 1981
O DNOCS e a irrigação do Nordeste by Maria Angélica Braga de Avellar - 1976 - 32 pages
O'Neill unit by United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Water and Power Resources - 1985 - 231 pages
Observations on the economic performance of irrigation by Lynn Hinton, Panos Varvarigos - 1990 - 52 pages
Observations on the utility, form and management of water meados, and draining and irrigating of peat bogs by William Smith - 1806 - 121 pages
ODI/IIMI Irrigation Management Network paper by Irrigation Management Network, Overseas Development Institute (London, England), International Irrigation Management Institute - 1989
ODI/IIMI Irrigation Management Network paper by Irrigation Management Network, Overseas Development Institute (London, England), International Irrigation Management Institute - 1986
Official proceedings by Isebella County, Mich. Board of Supervisors - 1968
Official proceedings by Sanilac County, Mich. Board of Supervisors - 1968
Official proceedings by Ionia County (Mich.) Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1968
Official proceedings by East Grand Rapids (Mich.) City Commission, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1966
Official proceedings by Far East Agricultural Credit and Cooperative Workshop - 1965
Official proceedings by East Grand Rapids (Mich.) City Commission - 1964
Official proceedings by Sanilac County, Mich. Board of Supervisors - 1964
Official proceedings by East Grand Rapids (Mich.) City Commission - 1963
Official proceedings by Alpena County (Mich.) Board of supervisors - 1963
Official proceedings by Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1963
Official proceedings by Alpena County (Mich.) Board of supervisors - 1962
Official proceedings by Alpena County (Mich.) Board of supervisors - 1962
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1962
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1962
Official proceedings by East Grand Rapids (Mich.) City Commission - 1962
Official proceedings by Alpena County (Mich.) Board of supervisors - 1961
Official proceedings by Alpena County (Mich.) Board of supervisors - 1961
Official proceedings by Chippewa County (Mich.) Board of Supervisors - 1960
Official proceedings by Delta County (Mich.) Board of Supervisors - 1960
Official proceedings by Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors - 1960
Official proceedings by East Grand Rapids (Mich.) City Commission - 1960
Official proceedings by Sanilac County, Mich. Board of Supervisors - 1960
Official proceedings by Alpena County (Mich.) Board of supervisors - 1959
Official proceedings by Delta County (Mich.) Board of Supervisors - 1959
Official proceedings by Alpena County (Mich.) Board of supervisors - 1959
Official proceedings by Delta County (Mich.) Board of Supervisors - 1959
Official proceedings by Alpena County (Mich.) Board of supervisors - 1959
Official proceedings by Alpena County (Mich.) Board of supervisors - 1959
Official proceedings by Gratiot County (Mich.). Board of Supervisors, Mason County (Mich.) Board of Supervisors - 1959
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Mason County (Mich.) Board of Supervisors - 1958
Official proceedings by Delta County (Mich.) Board of Supervisors - 1958
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors - 1957
Official proceedings by East Grand Rapids (Mich.) City Commission - 1957
Official proceedings by Delta County (Mich.) Board of Supervisors - 1957
Official proceedings by Sanilac County, Mich. Board of Supervisors - 1957
Official proceedings by Delta County (Mich.) Board of Supervisors - 1957
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors - 1956
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors - 1956
Official proceedings by Board of Supervisors - 1956
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors - 1956
Official proceedings by Alpena County (Mich.). Board of Supervisors - 1956
Official proceedings by Isebella County, Mich. Board of Supervisors - 1956
Official proceedings by East Grand Rapids (Mich.) City Commission - 1955
Official proceedings by Isebella County, Mich. Board of Supervisors - 1955
Official proceedings by Sanilac County, Mich. Board of Supervisors - 1955
Official proceedings by Ionia County (Mich.) Board of Supervisors - 1955
Official proceedings by Delta County (Mich.) Board of Supervisors - 1955
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1954
Official proceedings by Chippewa County (Mich.) Board of Supervisors - 1954
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1954
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1953
Official proceedings by Delta County (Mich.) Board of Supervisors - 1953
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1953
Official proceedings by Isebella County, Mich. Board of Supervisors - 1953
Official proceedings by East Grand Rapids (Mich.) City Commission, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1953
Official proceedings by Sanilac County, Mich. Board of Supervisors - 1952
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1952
Official proceedings by Isebella County, Mich. Board of Supervisors - 1952
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1952
Official proceedings by Delta County (Mich.) Board of Supervisors - 1951
Official proceedings by East Grand Rapids (Mich.) City Commission - 1951
Official proceedings by Mason County (Mich.) Board of Supervisors - 1951
Official proceedings by Shiawassee County (Mich.). Board of Supervisors - 1950
Official proceedings by Delta County (Mich.) Board of Supervisors - 1950
Official proceedings by Delta County (Mich.) Board of Supervisors - 1950
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Ionia County (Mich.) Board of Supervisors - 1950
Official proceedings by Sanilac County, Mich. Board of Supervisors - 1949
Official proceedings by East Grand Rapids (Mich.) City Commission, Gratiot County (Mich.) Board of Supervisors, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1949
Official proceedings by Delta County (Mich.) Board of Supervisors - 1949
Official proceedings by Isebella County, Mich. Board of Supervisors - 1949
Official proceedings by Chippewa County (Mich.) Board of Supervisors - 1949
Official proceedings by Delta County (Mich.) Board of Supervisors - 1948
Official proceedings by Chippewa County (Mich.) Board of Supervisors - 1948
Official proceedings by East Grand Rapids (Mich.) City Commission, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1948
Official proceedings by East Grand Rapids (Mich.) City Commission, Ionia County (Mich.) Board of Supervisors, Mason County (Mich.) Board of Supervisors, Sanilac County, Mich. Board of Supervisors, Shiawassee County (Mich.) Board of Supervisors - 1948
Official proceedings by Isebella County, Mich. Board of Supervisors - 1948
Official proceedings by East Grand Rapids (Mich.) City Commission - 1947
Official proceedings by Isebella County, Mich. Board of Supervisors - 1947
Official proceedings by East Grand Rapids (Mich.) City Commission - 1946
Official proceedings by Isebella County, Mich. Board of Supervisors - 1946
Official proceedings by Mason County (Mich.) Board of Supervisors - 1946
Official proceedings by Shiawassee County (Mich.) Board of Supervisors - 1946
Official proceedings by Ionia County (Mich.) Board of Supervisors - 1944
Official proceedings by East Grand Rapids (Mich.) City Commission - 1944
Official proceedings by Ionia County (Mich.) Board of Supervisors - 1943
Official proceedings by East Grand Rapids (Mich.) City Commission - 1943
Official proceedings by East Grand Rapids (Mich.) City Commission, Ionia County (Mich.) Board of Supervisors - 1942
Official proceedings by East Grand Rapids (Mich.) City Commission - 1941
Official proceedings by Ionia County (Mich.) Board of Supervisors - 1940
Official proceedings by East Grand Rapids (Mich.) City Commission - 1940
Official proceedings - 1929
Official proceedings - 1922
Official proceedings - 1915
Official proceedings - 1915
Official proceedings by Trempealeau County (Wis.). Board of Supervisors - 1912
Official proceedings by Trempealeau County (Wis.). Board of Supervisors - 1912
Official proceedings by Trempealeau County (Wis.). Board of Supervisors - 1912
Official proceedings - 1911
Official proceedings - 1910
Official proceedings - 1907
Official proceedings by Washington County (Wis.). Board of Supervisors - 1906
Official proceedings - 1905
Official proceedings by International Apple Association - 1902
Official proceedings - 1900
Official proceedings - 1894
Official proceedings
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1967
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1963
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1962
Official proceedings ... by Huron County (Mich.) Board of Supervisors - 1953
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1952
Official proceedings ... by Chippewa County (Mich.) Board of Supervisors, Isebella County, Mich. Board of Supervisors, Lapeer County (Mich.) Board of Supervisors - 1951
Official proceedings ... by Huron County (Mich.) Board of Supervisors - 1950
Official proceedings ... by Huron County (Mich.) Board of Supervisors - 1948
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1948
Official proceedings ... by Huron County (Mich.) Board of Supervisors - 1947
Official proceedings ... by Huron County (Mich.) Board of Supervisors - 1947
Official proceedings ... by Board of Supervisors - 1946
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1946
Official proceedings ... by Huron County (Mich.) Board of Supervisors - 1946
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1945
Official proceedings ... by Lapeer County (Mich.) Board of Supervisors - 1944
Official proceedings ... by Rochester (N.Y.). Public Instruction Department - 1912
Official proceedings ... - 1909
Official proceedings ... by Evangelical Lutheran Synod of Missouri, Ohio, and Other States. Southern California District, St. Bernard Port, Harbor, and Terminal District - 1905
Official proceedings ... by Rochester (N.Y.). Public Instruction Department - 1901
Official proceedings ... by Rochester (N.Y.). Public Instruction Department - 1894
Official proceedings ... by Rochester (N.Y.). Public Instruction Department - 1891
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1962
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1958
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1956
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1955
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1953
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1951
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1949
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1948
Official proceedings... by Gratiot County (Mich.) Board of Supervisors - 1946
On the sociology of irrigation by Robert Wade, World Bank. Agriculture and Rural Development Dept. Research Unit - 1985 - 16 pages
On the waterfront by Peter P. Mollinga - 2003 - 441 pages
On-farm adoption of water saving practices in Southern Alberta by David E. Kromm, Craig Damen - 1991 - 35 pages
On-farm irrigation water management problems by Md. Mozibur Rahman Biswas, M. A. S. Mandal - 1982 - 144 pages
On-farm water management research in Chile by Don C. Kidman, R. Kern Stutler, David W. James, United States. Agency for International Development - 1974 - 34 pages
One hundred and sixty acres of water by Angus Henry McDonald - 1958 - 37 pages
Operación de riego by Jorge Alfredo Luque, Juan Darío Paoloni - 1974 - 330 pages
Operation and maintenance of irrigation systems by Sidney Twitchell Harding - 1917 - 271 pages
Operation and maintenance of irrigation systems by Sidney Twitchell Harding - 1917 - 271 pages
Operation and maintenance of small irrigation schemes by Peter H. Stern - 1988 - 45 pages
Operational irrigation evaluation of Pakistan watercourse conveyance systems by Thomas James Trout, Sidney A Bowers - 1979 - 104 pages
Operational typologies for gravity irrigation systems by Roy Steiner - 1988 - 232 pages
Optimization of irrigation and drainage systems by American Society of Civil Engineers. Irrigation and Drainage Division, American Society of Agricultural Engineers. Soil and Water Division - 1971 - 626 pages
Optimum use of water resources by Nicolaas Arie Ridder, A. Erez - 1977 - 250 pages
Options and investment priorities in irrigation development by José Olivares, World Bank. Agriculture and Rural Development Dept, United Nations Development Programme - 1987 - 233 pages
Orchard irrigation by Samuel Fortier - 1940 - 28 pages
Organization of water users' associations, 1913 by United States. Bureau of Reclamation - 1913 - 31 pages
Organization, operation and maintenance of irrigation schemes by J. A. Sagardoy, Anthony Bottrall, G. O. Uittenbogaard - 1982 - 166 pages
Organization, work, and publications of irrigation investigations by United States. Office of Experiment Stations - 1909 - 12 pages
Organizational change for participatory irrigation management by C. M. Wijayaratna - 2002 - 318 pages
Organizing farmers for irrigation management by Jeanne Frances I. Illo, Maria Elena Chiong- Javier - 1983 - 323 pages
Oriental despotism by Karl August Wittfogel - 1981 - 556 pages
Oriental despotism by Karl August Wittfogel - 1957 - 556 pages
Ortho's all about sprinklers and drip systems by Ortho Books - 1998 - 96 pages
Os descaminhos do São Francisco by Marco Antônio Tavares Coelho - 2005 - 272 pages
Other channels by E. Walter Coward, Robert L. Johnson, Michael F. Walter, Cornell University. Irrigation Studies Group, Water Management Synthesis Project - 1988 - 110 pages
Out of the earth by Daniel Hillel - 1991 - 321 pages
Outline of a Course in the Law of Irrigation by Roscoe Pound - 1912 - 10 pages
Outlines of matter, and advance-sheets of the Report on the legislative, administrative, technical, and practical problems of irrigation, in course of preparation and publication by William Hammond Hall - 1885 - 304 pages
Oversight hearing on Salton Sea stabilization and water quality improvement by United States. Congress. House. Committee on Resources. Subcommittee on Water and Power Resources - 1998 - 112 pages
Oversight hearing on Salton Sea stabilization and water quality improvement by United States. Congress. House. Committee on Resources. Subcommittee on Water and Power Resources - 1998 - 112 pages
Oversight hearing on Salton Sea stabilization and water quality improvement by United States. Congress. House. Committee on Resources. Subcommittee on Water and Power Resources - 1998 - 112 pages
Oversight hearing on Salton Sea stabilization and water quality improvement by United States. Congress. House. Committee on Resources. Subcommittee on Water and Power Resources - 1996 - 112 pages