108 authors beginning with "U"

• U.S. Atomic Energy Commission.
• U.S. Coast and Geodetic Survey.
• U.S. Fish and Wildlife Service Pollution Response Workshop (197- :
• U.S. Fish and Wildlife Service.
• U.S. Fish and Wildlife Service. Office of Biological Services.
• U.S. Fish and Wildlife Service. Office of Endangered Species.
• U.S. Nuclear Regulatory Commission. Division of Safeguards, Fuel Cycle, and Environmental Research.
• Uber, Fred Murray, 1905-
• Uebelacker, Joan M.
• Uexküll, Jakob von, 1864-1944
• Uhler, Philip R. 1835-1913
• Uldall, F. P.
• Uline, Edwin Burton, 1867-
• Undersea Science Symposium (198- :
• Underwood, Lucien Marcus, 1853-1907
• Unesco.
• Unger, F. 1800-1870
• Unione zoologica italiana.
• United Nations Conference on Science and Technology for Development (197- :
• United States Entomological Commission.
• United States Exploring Expedition (183--184
• United States Fish Commission.
• United States National Herbarium.
• United States National Museum.
• United States. Army.
• United States. Biological Services Program.
• United States. Bureau of Biological Survey.
• United States. Bureau of Forestry.
• United States. Bureau of Plant Industry.
• United States. Committee on Rare and Endangered Wildlife Species.
• United States. Congress.
• United States. Dept. of Agriculture.
• United States. Dept. of Energy.
• United States. Dept. of State.
• United States. Dept. of the Treasury.
• United States. Division of Agrostology.
• United States. Division of Forestry.
• United States. Division of Vegetable Physiology and Pathology.
• United States. Environmental Protection Agency.
• United States. Federal Water Pollution Control Administration.
• United States. Government Accountability Office.
• United States. Marine Mammal Commission.
• United States. Minerals Management Service.
• United States. National Aeronautics and Space Administration.
• United States. National Biological Service.
• United States. National Environmental Satellite Service.
• United States. National Environmental Satellite, Data, and Information Service.
• United States. National Institute for General Medical Sciences.
• United States. National Marine Fisheries Service.
• United States. National Ocean Pollution Program Office.
• United States. National Ocean Service.
• United States. National Oceanic and Atmospheric Administration.
• United States. Ocean Assessments Division.
• United States. Office of Endangered Species and International Activities.
• United States. Office of Experiment Stations.
• United States. Office of Marine Pollution Assessment.
• United States. Office of Naval Research.
• United States. Office of Ocean and Coastal Resource Management.
• United States. Office of Scientific Research and Development.
• United States. President.
• United States. Public Health Service.
• United States. Soil Conservation Service.
• United States. Task Force on Women, Minorities, and the Handicapped in Science and Technology.
• United States. War Dept.
• Universidad Nacional de San Agustín.
• Universidade de Coimbra. Instituto Botnico.
• Universit de Lige. Institut de botanique.
• Universit degli studi di Roma "La Sapienza". Dipartimento di biologia vegetale.
• Universit di Pavia. Istituto botanico.
• Universit di Pavia. Laboratorio crittogamico.
• Universität Wien. Zoologisches Institut.
• Université de Liège
• Université de Paris. Nouvelle faculté de médecine.
• Universitt Tbingen. Botanisches Institut.
• University College, London. Biometric Laboratory.
• University of Alaska (College). Geophysical Institute.
• University of Alaska, Fairbanks. Geophysical Institute.
• University of Arizona. Agricultural Experiment Station.
• University of California (System)
• University of California, Berkeley.
• University of Illinois at Urbana-Champaign.
• University of Kansas.
• University of Kansas. Museum of Natural History.
• University of Kansas. Natural History Museum.
• University of Massachusetts (System). Center for Marine Science and Technology.
• University of Melbourne.
• University of Missouri.
• University of Montana (Missoula)
• University of Montana (Missoula).
• University of Nebraska (Lincoln campus). Dept. of Zoology.
• University of North Carolina (1793-1962).
• University of Pennsylvania. Botanical Laboratory.
• University of Puerto Rico (System). Programa Sea Grant.
• University of Texas at Dallas.
• University of the State of New York.
• University of the State of New York. Board of Regents.
• University of Vermont. Botany Dept.
• University of Wisconsin.
• Uniwersytet Wroc¿awski. Muzeum Zoologiczne.
• Unzer, Johann August, 1727-1799
• Uppsala universitet
• Uppsala universitet. Herbarium
• Uppsala universitetsbibliotek
• Urban, Ignaz, 1848-
• Urian, K. W.
• USA-USSR Symposium on the Effects of Pollutants Upon Aquatic Ecosystems 1976-:
• Utzurrum, Ruth C. B.
• Uvarov, Boris Petrovich, 1888-