Book 1,072 Serial 469 Government Document 195 Journal 49 Conference Proceeding 11 Electronic 6 Reference Material 5 Kit 1 Unknown 1 see all ...

Unesco Science Cooperation Office for Latin America 54 Eisenhower National Clearinghouse for Mathematics and Science Education 28 National Institute of Standards and Technology (U.S.) 26 American Geological Institute 21 National Science Foundation (U.S.) 20 American Chemical Society 16 National Referral Center for Science and Technology (U.S.) 14 United States National Bureau of Standards 14 American Institute of Physics 13 National Referral Center (U.S.) 13 National Research Council (U.S.) 13 United States Office of Educational Research and Improvement 13 American Association for the Advancement of Science 12 Council on Undergraduate Research (U.S.) 12 Nihon Gakujutsu Shinkōkai 12 Hyer, Charles W 11 Jaques Cattell Press 11 Unesco 11 Breitenberg, Maureen A 10 Japan Gakujutsu Kokusaikyoku 10 Federal Council for Science and Technology (U.S.) Committee on Scientific and Technical Information 9 Max-Planck-Gesellschaft zur Förderung der Wissenschaften 9 National Academy of Sciences (U.S.) 9 British Council 8 Gale Research Company 8 Geological Survey (U.S.) 8 Great Britain Department of Scientific and Industrial Research 8 Organization of American States 8 U.S. Fish and Wildlife Service Office of Endangered Species 8 African Academy of Sciences 7 see all ...

English 1,271 Spanish 93 German 47 French 45 Chinese 41 Russian 37 Japanese 34 Indonesian 12 Portuguese 11 Arabic 9 Korean 9 Ukrainian 6 Polish 5 Romanian 4 Italian 3 Persian 3 Vietnamese 3 Czech 2 Dutch 2 Finnish 2 Hebrew 2 Latin 2 Moldavian 2 Multiple 2 Sanskrit 2 Afrikaans 1 Catalan 1 Danish 1 Hungarian 1 Icelandic 1 see all ...

1900-1999 1 1986 1 Geschichte 1500-2000 1