Book 54,513 Conference Proceeding 3,991 Electronic 2,847 Journal 2,304 Government Document 1,674 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 58,643

Edgar Fahs Smith Memorial Collection (University of Pennsylvania) 739 ebrary, Inc 732 SpringerLink (Online service) 643 ProQuest (Firm) 500 American Institute of Chemical Engineers 397 American Chemical Society Meeting 395 Dupee Fireworks Collection (Brown University) 380 Wiley InterScience (Online service) 252 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) 159 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 United States Department of Energy 103 American Chemical Society Division of Industrial and Engineering Chemistry 102 see all ...

English 49,201 German 3,788 French 2,821 Russian 884 Spanish 804 Italian 693 Chinese 612 Japanese 463 Portuguese 242 Korean 196 Indonesian 144 Dutch 130 Czech 118 Polish 109 Hungarian 83 Swedish 78 Latin 77 Arabic 72 Greek 68 Undetermined 59 Multiple 58 Hebrew 50 Vietnamese 47 Danish 42 Persian 37 Thai 35 Romanian 34 Turkish 31 Finnish 21 Georgian 20 see all ...

Congresses 5,367 Electronic books 5,293 Conference papers and proceedings 4,262 Periodicals 2,900 History 1,946 Handbooks, manuals, etc 1,276 Catalogs 980 Dictionaries 869 Handbooks and manuals 832 Technical reports 688 Electronic journals 433 Early works to 1800 401 Directories 387 Biography 382 Guidebooks 327 Patents 324 Biographies 235 Periodical 228 Early works 224 Tables 215 Encyclopedias 201 Amateurs' manuals 190 Congress 189 Bibliography 182 Guides, manuels, etc 181 Périodiques 179 Pictorial works 162 Statistics 158 Electronic book 144 Exhibitions 141 see all ...

20th century 235 19th century 170 Early works to 1800 109 18th century 75 To 1500 73 1833-1896 64 17th century 57 1900-1999 52 21st century 47 1939-1945 34 Geschichte 30 16th century 28 1800-1899 23 2000-2099 20 1800-1999 17 1900 - 1999 15 1700-1799 14 Elizabeth, 1558-1603 14 1945- 13 20e siècle 10 1800 - 1899 9 1838-1907 9 1558-1603 8 1600-1699 8 James I, 1603-1625 8 15th century 7 1700-1899 7 1743-1826 7 1777-1866 7 1812-1869 7 see all ...

United States 1,989 France 1,067 Germany 623 Italy 425 California 388 Great Britain 367 China 363 Japan 301 Europe 278 India 249 Canada 210 Australia 185 England 180 Spain 172 Mexico 142 New York (State) 140 Indonesia 132 Brazil 118 Developing countries 118 Korea (South) 109 South Africa 109 Soviet Union 106 Pennsylvania 96 Burgundy 94 Portugal 90 Russia (Federation) 89 Korea 85 Greece 83 Nigeria 74 Asia 64 see all ...