LEABHAR 116,870 Imeacht comhdhála 10,209 Caibidil leabhair 6,893 Leictreonach 5,210 Sraithuimhir 5,059 IRIS 4,963 Doiciméad rialtais 3,293 Tráchtas 1,464 Anaithnid 789 Fuaim 69 Ábhar tagartha 65 LÁMHSCRÍBHINN 28 Trealamh 18 LÉARSCÁIL 16 Grianghraf 11 SCÓR CEOIL 9 Alt 5 Nuachtán 2 Rud fisiciúil 2 breathnaigh ar gach rud ...

Q - Eolaíocht 135,040 J - Eolaíocht Pholaitiúil 1 R - Leigheas 1 T - Teicneolaíocht 1

SpringerLink (Online service) 8,537 ebrary, Inc 1,047 National Science Foundation (U.S.) 936 New York Academy of Sciences 931 Smithsonian Institution 886 Edgar Fahs Smith Memorial Collection (University of Pennsylvania) 614 ProQuest (Firm) 613 Rand Corporation 610 Massachusetts Institute of Technology Artificial Intelligence Laboratory 550 National Academy of Sciences (U.S.) 476 De Gruyter 460 Institute of Electrical and Electronics Engineers 455 United States National Museum 403 Edward Potts Cheyney Memorial Fund 398 IEEE Xplore (Online service) 379 IEEE Computer Society 321 William B. Provine Collection on Evolution and Genetics 304 Unesco 295 Royal Society (Great Britain) 278 American Association for the Advancement of Science 277 Humboldt, Alexander von, 1769-1859 258 History of Science Collection (Brown University) 257 Organisation for Economic Co-operation and Development 246 Jordan, David Starr, 1851-1931 237 National Research Council (U.S.) 223 Abbot, C. G (Charles Greeley), 1872-1973 215 Huxley, Thomas Henry, 1825-1895 208 ProQuest ebook central 191 United States Air Force 186 David E. Pingree Collection (Brown University) 176 breathnaigh ar gach rud ...

English 96,858 French 10,280 German 10,224 Russian 4,017 Chinese 3,364 Spanish 3,215 Italian 2,672 Latin 2,156 Japanese 1,184 Dutch 997 Arabic 978 Portuguese 840 Swedish 651 Polish 565 Korean 511 Ancient Greek 291 Turkish 253 Indonesian 248 Vietnamese 247 Hebrew 246 Finnish 243 Danish 241 Persian 199 Multiple 194 Czech 190 Undetermined 179 Ukrainian 154 Hungarian 151 Romanian 145 Greek 136 breathnaigh ar gach rud ...

Congresses 12,111 Electronic books 11,686 History 9,209 Conference papers and proceedings 8,867 Periodicals 7,805 Biography 4,108 Early works to 1800 3,064 Biographies 2,453 Congress 1,588 Dictionaries 1,575 Technical reports 1,331 Early works 1,243 Bibliography 1,198 Directories 1,013 Statistics 943 Congrès 872 Juvenile literature 824 Periodical 810 Popular works 690 Miscellanea 623 Electronic journals 613 Bibliographies 605 Catalogs 563 Handbooks, manuals, etc 533 Juvenile works 485 Handbooks and manuals 396 Textbooks 383 Trivia and miscellanea 372 Classification 358 Academic theses 345 breathnaigh ar gach rud ...

20th century 1,375 19th century 1,072 Early works to 1800 905 18th century 680 17th century 635 1900-1999 563 1769-1859 435 1800-1899 384 1822-1895 301 1700-1799 260 1600-1699 240 16th century 197 1900 - 1999 197 21st century 196 1564-1642 156 Pleistocene 148 1642-1727 146 To 1500 138 1800-1999 123 Cretaceous 123 1800 - 1899 119 1922-1996 113 973?-1048 113 Tertiary 112 1452-1519 111 20e siècle 104 19e siècle 99 Cambrian 99 Geschichte 92 Eocene 91 breathnaigh ar gach rud ...

United States 6,684 China 2,407 Great Britain 1,486 Germany 1,385 France 1,243 Soviet Union 1,192 Europe 1,089 India 987 Japan 953 Italy 898 New York (State) 722 Russia (Federation) 692 North America 673 Mexico 671 England 511 Brazil 495 Spain 492 Canada 487 Greenland 451 Latin America 400 California 374 Finland 371 Africa 363 Indonesia 355 Russia 334 Arab countries 332 Netherlands 303 Philippines 303 Greece 294 Argentina 286 breathnaigh ar gach rud ...