T - Tecnología 139,190 P - Lenguaje y literatura 59,902 B - Filosofía, psicología, religión 44,121 H - Ciencias sociales 40,799 Q - Ciencia 38,146 K - Leyes 26,305 D - Historia mundial 25,704 L - Educación 16,716 N - Finas artes 16,004 F - Historia general americana 15,529 M - Música 13,205 J - Ciencias políticas 9,573 R - Medicina 8,879 G - Geografía, antropología, recreación 8,693 S - Agricultura 8,460 A - Trabajos generales 6,302 E - Historia de los Estados Unidos 4,190 Z - Ciencias bibliotecológicas 3,243 U - Ciencias militares 2,033 C - Ciencias históricas 1,648 V - Ciencias navales 460 ver todos ...

Yale University 17,551 Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 11,233 University of Pennsylvania 10,115 Massachusetts Institute of Technology Department of Mechanical Engineering 9,326 Sloan School of Management 6,056 Stanford University School of Education 5,587 Harvard University Graduate School of Education 5,384 Stanford University Department of Electrical Engineering 4,859 Massachusetts Institute of Technology Department of Architecture 3,110 Massachusetts Institute of Technology Department of Aeronautics and Astronautics 2,705 Massachusetts Institute of Technology Department of Urban Studies and Planning 2,594 Princeton University Department of Physics 2,552 Columbia University Writing Division 2,549 Stanford University Department of Chemistry 2,524 Princeton University Department of Mathematics 2,379 Massachusetts Institute of Technology Department of Physics 2,377 Massachusetts Institute of Technology Department of Materials Science and Engineering 2,300 Massachusetts Institute of Technology Department of Civil and Environmental Engineering 2,207 University of Chicago 2,205 Stanford University Department of Mechanical Engineering 2,202 Harvard University Department of Anthropology 2,084 John F. Kennedy School of Government 2,011 Harvard Law School 1,978 De Gruyter 1,920 Harvard University Graduate School of Design 1,898 Princeton University Department of Molecular Biology 1,792 Stanford University Graduate School of Business 1,770 Stanford University Department of Physics 1,720 Massachusetts Institute of Technology Engineering Systems Division 1,588 Stanford University Department of History 1,536 ver todos ...

English 861,412 German 266,670 French 86,589 Latin 53,221 Spanish 17,126 Dutch 15,502 Swedish 7,695 Hebrew 7,041 Chinese 5,921 Arabic 2,581 Danish 2,549 Italian 2,523 Portuguese 1,926 Ancient Greek 1,885 Korean 1,885 Finnish 1,694 Undetermined 1,468 Greek 1,344 Turkish 1,279 Thai 937 Russian 731 Indonesian 535 Afrikaans 513 Polish 483 Hindi 301 Japanese 300 Sanskrit 281 Hungarian 268 Croatian 266 Norwegian 252 ver todos ...

Academic theses 235,495 Thèses et écrits académiques 153,724 dissertations 76,497 Academic Dissertation 75,563 theses 71,795 doctoral dissertations 71,752 masters theses 71,734 History 31,899 Criticism, interpretation, etc 23,260 Hochschulschrift 23,182 Academic dissertations 19,715 Case studies 7,639 Early works to 1800 6,349 Biography 5,553 Early works 4,370 Dissertations 3,367 Electronic books 3,141 Biographies 3,096 Thèses et écrits académiques 2,618 Bibliography 1,943 Sources 1,777 Theses 1,619 Facsimiles 1,602 Church history 1,511 Designs and plans 1,202 Manuscripts, American 1,081 Dissertations (form) 1,079 Technical reports 1,008 Statistics 898 Catalogs 860 ver todos ...

20th century 14,385 19th century 10,290 18th century 5,305 1900-1999 4,311 17th century 3,182 16th century 2,350 1800-1899 2,268 To 1500 1,965 1900 - 1999 1,916 1564-1616 1,822 1724-1804 1,426 1700-1799 1,237 1945- 1,174 Early modern, 1500-1700 1,161 Early works to 1800 1,022 1749-1832 992 1800 - 1899 944 Middle High German, 1050-1500 928 Early church, ca. 30-600 882 active 12th century 877 Middle Ages, 600-1500 856 Middle English, 1100-1500 854 1933-1945 834 Old English, ca. 450-1100 814 21st century 766 1225?-1274 729 To 1300 696 1483-1546 661 Colonial period, ca. 1600-1775 632 1700 - 1799 605 ver todos ...

Germany 43,796 United States 40,556 France 20,589 China 10,274 Switzerland 9,560 Great Britain 6,419 New York (State) 6,270 Germany (West) 6,192 Mexico 6,152 Sweden 5,120 Italy 4,960 Europe 4,658 Netherlands 4,563 Japan 4,506 Greece 4,119 India 3,951 Rome 3,531 Indonesia 3,487 California 3,322 Israel 3,128 England 3,112 Massachusetts 3,051 Thailand 2,952 Spain 2,892 Illinois 2,731 Turkey 2,611 Egypt 2,598 Soviet Union 2,464 Philippines 2,310 Colombia 2,209 ver todos ...