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U.S. Naval astronomical expedition to the southern hemisphere during the years 1849-'50-'51-'52 by United States. Navy Dept - 1856
Uebersicht der deutschen Reichsstandschafts- und Territorial-Verhältnisse by Carl W. Von Lancizolle, Hans Hattenhauer - 2003 - 177 pages
Uebersicht der deutschen Reichsstandschafts- und Territorial-Verhältnisse by Carl Wilhelm von Lancizolle, Hans Hattenhauer - 2003 - 177 pages
Um olhar sobre o passado by Silvia Fernanda de Mendonça Figueirôa - 1999 - 282 pages
Un bosque en la ciudad by Jordi Corbera, Jaime Güemes Heras, Carles Puche - 2005 - 300 pages
Un poco de ciencia para todo el mundo / A Bit of Science for Everyone by Claude Allègre - 2005 - 268 pages
Un secolo di evoluzionismo in Italia by Paolo Coccia - 2003 - 319 pages
Un siglo de ciencia en España - 1998 - 261 pages
Una biografia della scienza by Renzo Morchio - 2005 - 506 pages
Una difficile modernità by Antonio Casella - 2000 - 524 pages
Uncertain Knowledge by R. G. A. Dolby - 2002 - 380 pages
Under the Microscope by William J. Croft - 2006 - 138 pages
Understanding Catastrophe - 2006 - 220 pages
Understanding Space-Time by Robert DiSalle - 2006 - 188 pages
Une histoire des sciences au fil des textes : Volume 1, Des Mésopotamiens à by Martin Cuénod, Claude Duverney - 2006
Une histoire sentimentale des sciences by Nicolas Witkowski - 2003 - 331 pages
Uneasy Careers and Intimate Lives by Pnina G. Abir-Am, Dorinda Outram - 1987 - 365 pages
Uneasy careers and intimate lives by Pnina G. Abir-Am, Dorinda Outram - 1987 - 365 pages
Unesco science and technology activities in Asia and the Pacific by Unesco - 1983 - 37 pages
Ungeschehene Geschichte by Alexander Demandt - 2011 - 190 pages
Unicist Ontology of History by Peter Belohlavek - 2008
Unpublished Scientific Papers of Isaac Newton - 1978 - 448 pages
Unravelling the Mystery of the Atomic Nucleus by Bernard Fernandez, Georges Ripka - 2012 - 515 pages
Unrolling Time by Joella G. Yoder - 2004 - 256 pages
Unscientific America by Chris Mooney, Sheril Kirshenbaum - 2010 - 209 pages
Untersuchungen zum Energieumsatz in der Akkumulationszone des grönländischen Inlandeises by Walter Ambach - 1977 - 44 pages
Untitled by Anonymous by Anonymous - 2011 - 384 pages
Unveiling the Microcosmos by Peter Day - 1996 - 170 pages