Book 6,992 Conference Proceeding 382 Electronic 148 Journal 120 Serial 110 Thesis 90 Government Document 56 Book Chapter 36 Unknown 31 Map 7 Audio 4 Manuscript 3 Kit 2 see all ...

Council of Europe 99 De Gruyter 67 ebrary, Inc 60 Edward Potts Cheyney Memorial Fund 51 ProQuest (Firm) 41 European Commission 40 Geological Society of London 30 Commission of the European Communities 29 European Commission Directorate General for Research 28 Statistical Office of the European Communities 28 Council of Europe European Committee for the Conservation of Nature and Natural Resources 22 SpringerLink (Online service) 21 William B. Provine Collection on Evolution and Genetics 20 European Environment Agency 19 European Space Agency 19 Unesco 17 International Geological Congress 16 Taylor & Francis 16 European Science Foundation 15 Feingold, Mordechai 15 Schimper, Wilhelm-Philippe, 1808-1880 15 Dear, Peter, 1958- 14 National Science Foundation (U.S.) 14 Svensson, Lars, 1941- 14 Walter de Gruyter & Co 14 Géroudet, Paul 13 Hollom, P. A. D (Philip Arthur Dominic) 13 Mountfort, Guy 13 Peterson, Roger Tory, 1908-1996 13 United Nations Economic Commission for Europe 13 see all ...

English 4,521 German 1,578 French 924 Italian 241 Russian 213 Latin 187 Spanish 79 Dutch 63 Swedish 63 Polish 59 Multiple 43 Czech 38 Danish 37 Portuguese 17 Japanese 15 Chinese 13 Undetermined 12 Hungarian 11 Romanian 11 Finnish 10 Slovak 10 Bulgarian 7 Ukrainian 7 Arabic 6 Hebrew 6 Norwegian 6 Slovenian 6 Turkish 6 Belarusian 5 Croatian 5 see all ...

History 969 Congresses 666 Conference papers and proceedings 520 Identification 443 Electronic books 398 Guidebooks 302 Field guides 251 Classification 225 Biography 195 Periodicals 186 Pictorial works 186 Biographies 131 Dictionaries 63 Early works to 1800 63 Early works 61 Directories 60 Maps 51 Statistics 47 Catalogs 42 Correspondence 40 Catalogs and collections 39 Exhibitions 39 Academic theses 38 Aufsatzsammlung 38 Bibliography 38 Exhibition catalogs 30 Thèses et écrits académiques 30 Handbooks, manuals, etc 29 Electronic journals 27 Atlases 26 see all ...

17th century 198 18th century 181 19th century 158 20th century 119 16th century 87 1700-1799 68 Tertiary 62 1600-1699 61 Quaternary 60 1900-1999 59 Pleistocene 59 1800-1899 47 To 1500 47 Paleozoic 43 Cretaceous 39 From 2 million years ago 39 Jurassic 37 From 2 to 65 million years ago 36 From 10 thousand to 2 million years ago 34 Carboniferous 32 From 140 to 190 million years ago 31 1600-1799 30 1642-1727 30 1600 - 1699 29 Permian 28 Holocene 27 Triassic 27 1500-1599 26 1500-1699 26 1564-1642 26 see all ...

Europe 6,240 Europe, Central 394 Great Britain 316 Europe, Northern 272 Europe, Eastern 232 Central Europe 182 Germany 152 United States 152 British Isles 151 European Union countries 133 France 119 Northern Europe 111 North America 106 Africa, North 100 Europa 98 Asia 95 Italy 89 Eastern Europe 87 Middle East 83 Europe, Western 74 Mediterranean Region 67 China 60 Carpathian Mountains 53 Lapland 52 North Africa 51 Russia (Federation) 48 Soviet Union 47 Austria 44 England 43 Europe, Southern 43 see all ...