Book 1,090,102 Thesis 139,202 Conference Proceeding 106,657 Government Document 65,760 Electronic 42,585 Journal 25,890 Serial 23,835 Unknown 7,904 Kit 4,343 Manuscript 1,173 Photo 1,064 Audio 911 Book Chapter 614 Reference Material 335 Map 171 Newspaper 102 Musical Score 98 Physical Object 41 Article 14 see all ...

SpringerLink (Online service) 19,014 Adam Matthew Digital (Firm) 14,309 Society of Photo-optical Instrumentation Engineers 11,836 Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 10,711 Institute of Electrical and Electronics Engineers 9,618 ebrary, Inc 9,375 IEEE Xplore (Online service) 9,132 Massachusetts Institute of Technology Department of Mechanical Engineering 8,789 Culinary Collection (University of Pennsylvania) 8,085 United States Bureau of Mines 6,215 ProQuest (Firm) 5,949 Sloan School of Management 5,811 United States National Aeronautics and Space Administration 5,791 Chef Fritz Blank Culinary Archive and Library (University of Pennsylvania) 5,739 Laurie Burrows Grad Collection (University of Pennsylvania) 5,317 AM (Publisher) 4,199 Langley Research Center 4,089 Society of Photo-Optical Instrumentation Engineers 3,576 SPIE (Society) 2,927 National Research Council (U.S.) Transportation Research Board 2,856 Geological Survey (U.S.) 2,813 United States General Accounting Office 2,639 Lewis Research Center 2,628 IEEE Computer Society 2,568 Massachusetts Institute of Technology Department of Aeronautics and Astronautics 2,510 United States Federal Highway Administration 2,291 Massachusetts Institute of Technology Department of Physics 2,176 Massachusetts Institute of Technology Department of Materials Science and Engineering 2,152 Massachusetts Institute of Technology Department of Urban Studies and Planning 2,110 Massachusetts Institute of Technology Department of Civil and Environmental Engineering 1,885 see all ...

English 994,562 German 48,457 French 42,569 Russian 21,456 Spanish 21,176 Chinese 15,373 Italian 14,306 Japanese 12,222 Portuguese 5,110 Dutch 3,823 Korean 3,703 Polish 2,623 Indonesian 2,385 Arabic 1,918 Czech 1,893 Hebrew 1,845 Swedish 1,822 Vietnamese 1,814 Turkish 1,795 Multiple 1,415 Thai 1,189 Hungarian 1,017 Latin 937 Undetermined 919 Persian 911 Danish 892 Greek 827 Ukrainian 717 Finnish 702 Catalan 698 see all ...

Congresses 127,029 Conference papers and proceedings 89,771 Electronic books 82,400 Periodicals 37,185 History 36,541 Exhibitions 29,681 Pictorial works 27,733 Cookbooks 19,060 Exhibition catalogs 18,768 Handbooks, manuals, etc 17,544 Technical reports 15,694 Biography 15,287 Handbooks and manuals 12,292 Catalogs 11,323 Biographies 9,301 Dictionaries 8,726 Livres de cuisine 7,022 cookbooks 6,960 Illustrated works 5,415 Directories 5,017 Congrès 4,767 Portraits 4,699 Photobooks 4,595 Electronic journals 4,575 Statistics 4,285 Early works to 1800 4,003 Cookbook 3,769 Academic theses 3,283 Juvenile literature 3,059 Bibliography 3,006 see all ...

20th century 13,884 19th century 6,013 21st century 5,235 1900-1999 4,607 2000-2099 2,495 1800-1899 1,490 1900 - 1999 1,218 Early works to 1800 1,162 20e siècle 1,011 18th century 905 1800-1999 695 21e siècle 634 1946- 621 1945- 610 1944- 588 1955- 588 1938- 585 1952- 573 1964- 567 To 1500 564 1900-2099 562 1949- 547 1953- 533 1958- 526 1954- 521 1957- 520 1951- 485 1961- 474 1966- 465 1950- 463 see all ...

United States 62,343 Great Britain 11,721 China 10,355 France 10,237 Japan 10,089 Germany 9,025 California 7,112 Italy 6,848 India 6,181 New York (State) 5,762 England 5,531 Soviet Union 4,835 Europe 4,554 Canada 4,232 Mexico 3,796 Massachusetts 3,487 Russia (Federation) 3,445 New York 3,432 Indonesia 3,330 Spain 3,215 Australia 3,142 Brazil 3,139 Pennsylvania 3,048 South Africa 3,031 Developing countries 2,151 Russia 2,145 London 2,134 Netherlands 2,113 Illinois 2,003 Korea (South) 1,928 see all ...