Construction of dams and aircraft overflights in national park units: hearing before the Subcommittee on National Parks and Recreation of the Committee on Interior and Insular Affairs, House of Representatives, Ninety-ninth Congress, second session on H.R. 4089 ... H.R. 4430 ... hearing held in Washington, DC, May 20, 1986, Volume 4

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U.S. G.P.O., 1987 - Technology & Engineering - 370 pages
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Contents

Page
55
STATEMENT OF THE PROBLEM
226
REGULATIONS AND POLICIES
232
Copyright

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