History 41,279 Periodicals 40,434 Statistics 23,535 Electronic books 20,832 Congresses 16,767 Conference papers and proceedings 11,243 Sources 4,144 Maps 3,774 Bibliography 3,561 Biography 3,276 Case studies 3,137 Early works to 1800 2,390 Documentary films 2,224 Academic theses 2,026 Biographies 1,892 Interviews 1,754 Internet videos 1,677 Bibliographies 1,515 Thèses et écrits académiques 1,515 Video recordings 1,322 Radio news programs 1,233 Early works 1,157 Pictorial works 1,035 Nonfiction films 1,021 Legislative hearings 931 Electronic journals 895 Feature films 891 bibliography 861 bibliographie 859 bibliografía 857 reference 799 referencia 799 référence bibliographique 798 Dictionaries 787 dissertations 766 Academic Dissertation 726 Directories 700 DVD-Video discs 693 Handbooks, manuals, etc 691 theses 685 masters theses 684 doctoral dissertations 683 Statistiques 626 Catalogs 621 Congrès 617 Périodiques 594 graph 590 graphique 590 gráfico 588 Périodiques 585 Aufsatzsammlung 565 Television news programs 565 Drama 548 Documentary television programs 541 Festschriften 525 Fiction 506 Educational films 460 Criticism, interpretation, etc 445 Broadsides 439 Oral histories (literary works) 438 Newspapers 435 Promotional materials 435 Correspondence 416 carte géographique 412 map 412 mapa 412 Handbooks and manuals 406 Atlases 380 Databases 376 Conference papers and proceedings 322 Printed ephemera 318 Forecasts 316 Electronic book 315 Exhibitions 309 Census data 304 Serial publications 303 Indexes 296 Hochschulschrift 289 CD-ROMs 285 Speeches 285 Actes de congrès 281 Government publications 281 Short films 275 Autobiographies 269 Essays 255 Video recordings for the hearing impaired 255 Account books 247 Facsimiles 244 Pamphlets 225 Texts 224 Statistics, Vital 223 Chronology 216 Exhibition catalogs 210 Nonfiction television programs 207 Diaries 201 Census 197 Miscellanea 196 Abstracts 195 Congress 195 Études de cas 195