Book 54,363 Conference Proceeding 3,990 Electronic 2,842 Journal 2,302 Government Document 1,671 Serial 1,252 Thesis 843 Unknown 224 Photo 96 Reference Material 29 Manuscript 28 Kit 14 Audio 11 Newspaper 11 Book Chapter 6 Physical Object 6 Map 4 see all ...

T - Technology 58,491

Edgar Fahs Smith Memorial Collection (University of Pennsylvania) 739 ebrary, Inc 733 SpringerLink (Online service) 640 ProQuest (Firm) 504 American Institute of Chemical Engineers 397 American Chemical Society Meeting 395 Dupee Fireworks Collection (Brown University) 380 Wiley InterScience (Online service) 250 Faber Birren Collection (Yale University) 228 Oak Ridge National Laboratory 203 De Gruyter 190 Massachusetts Institute of Technology David H. Koch School of Chemical Engineering Practice. Oak Ridge Station 180 Culinary Collection (University of Pennsylvania) 173 Institution of Chemical Engineers (Great Britain) 173 Royal Society of Chemistry (Great Britain) 165 United States Office of Saline Water 161 ScienceDirect (Online service) 155 American Chemical Society 153 American Chemical Society Division of Agricultural and Food Chemistry 152 American Institute of Chemical Engineers Center for Chemical Process Safety 141 Chef Fritz Blank Culinary Archive and Library (University of Pennsylvania) 129 Adam Matthew Digital (Firm) 124 British Intelligence Objectives Sub-Committee 123 American Society for Testing and Materials 121 Society of Photo-optical Instrumentation Engineers 114 United States General Accounting Office 112 Alumni and Friends Memorial Book Fund 105 United States Bureau of Mines 105 American Chemical Society Division of Industrial and Engineering Chemistry 102 United States Department of Energy 102 see all ...

English 49,081 German 3,783 French 2,820 Russian 883 Spanish 783 Italian 692 Chinese 612 Japanese 461 Portuguese 241 Korean 194 Indonesian 144 Dutch 130 Czech 118 Polish 108 Hungarian 82 Swedish 78 Latin 77 Arabic 72 Greek 67 Undetermined 59 Multiple 58 Hebrew 50 Vietnamese 47 Danish 42 Persian 37 Thai 35 Romanian 31 Turkish 31 Finnish 21 Georgian 19 see all ...

Congresses 5,366 Electronic books 5,312 Conference papers and proceedings 4,260 Periodicals 2,897 History 1,938 Handbooks, manuals, etc 1,276 Catalogs 978 Dictionaries 868 Handbooks and manuals 831 Technical reports 688 Early works to 1800 401 Directories 385 Biography 376 Electronic journals 353 Guidebooks 326 Patents 324 Biographies 232 Periodical 231 Early works 225 Tables 215 Encyclopedias 199 Congress 190 Amateurs' manuals 188 Bibliography 181 Guides, manuels, etc 181 Pictorial works 162 Statistics 158 Périodiques 154 Electronic book 144 Exhibitions 141 see all ...

20th century 234 19th century 168 Early works to 1800 109 18th century 75 To 1500 71 1833-1896 64 17th century 57 1900-1999 50 21st century 46 1939-1945 34 Geschichte 30 16th century 26 1800-1899 23 2000-2099 20 1800-1999 16 1900 - 1999 15 1700-1799 14 Elizabeth, 1558-1603 14 1945- 13 1800 - 1899 9 1838-1907 9 1558-1603 8 1600-1699 8 20e siècle 8 James I, 1603-1625 8 1700-1899 7 1743-1826 7 1777-1866 7 1812-1869 7 1861-1935 7 see all ...

United States 1,986 France 1,062 Germany 620 Italy 422 California 388 Great Britain 365 China 363 Japan 301 Europe 278 India 249 Canada 210 Australia 182 England 179 Spain 168 Mexico 142 New York (State) 139 Indonesia 132 Developing countries 118 Brazil 117 South Africa 109 Korea (South) 107 Soviet Union 106 Pennsylvania 96 Burgundy 95 Portugal 90 Russia (Federation) 87 Greece 83 Korea 83 Nigeria 74 Asia 64 see all ...