Genre
Periodicals
26,912
History
21,274
Statistics
17,222
Electronic books
13,771
Congresses
11,003
Conference papers and proceedings
7,653
Case studies
2,430
Sources
1,699
Biography
1,425
Academic theses
1,084
Electronic journals
1,044
Thèses et écrits académiques
891
Biographies
854
bibliographie
785
bibliography
785
bibliografía
783
Bibliography
733
reference
710
referencia
710
référence bibliographique
709
Documentary films
699
Early works to 1800
597
graph
547
graphique
547
gráfico
545
Interviews
513
Maps
491
Périodiques
486
Périodiques
473
Dictionaries
469
Directories
456
Statistiques
452
Nonfiction films
449
dissertations
446
Handbooks, manuals, etc
436
Academic Dissertation
430
Bibliographies
426
theses
404
doctoral dissertations
403
masters theses
403
Early works
398
Congrès
389
Video recordings
374
Aufsatzsammlung
373
Festschriften
366
carte géographique
349
map
349
mapa
349
Serial publications
275
Handbooks and manuals
267
more ...