Genre
History
29,898
Periodicals
17,104
Electronic books
10,834
Statistics
8,086
Conference papers and proceedings
7,231
Congresses
6,763
Sources
1,897
Maps
1,819
Bibliography
1,618
Case studies
1,524
Biography
1,377
Biographies
1,050
Early works to 1800
990
Early works
918
Electronic journals
796
Academic theses
765
Bibliographies
761
bibliography
606
bibliographie
605
bibliografía
604
reference
568
referencia
568
référence bibliographique
567
Périodiques
556
Thèses et écrits académiques
553
Congrès
535
Dictionaries
531
Périodiques
500
Internet videos
450
Statistiques
433
Aufsatzsammlung
425
Legislative hearings
422
Pictorial works
421
Festschriften
414
Documentary films
396
Educational films
392
graph
390
graphique
390
gráfico
388
Interviews
364
dissertations
315
Newspapers
277
Criticism, interpretation, etc
276
Electronic book
276
carte géographique
271
map
271
mapa
271
Handbooks, manuals, etc
267
Conference papers and proceedings
266
Atlases
258
more ...