Genre
Periodicals
29,615
Electronic books
19,731
History
17,194
Statistics
16,993
Congresses
16,326
Conference papers and proceedings
11,655
Biography
6,400
Case studies
3,404
Biographies
3,372
Sources
1,747
Directories
1,724
Electronic journals
1,174
Academic theses
1,104
Dictionaries
1,039
reference
1,018
referencia
1,018
référence bibliographique
1,016
bibliography
994
bibliographie
991
bibliografía
990
Bibliography
950
Thèses et écrits académiques
930
graph
695
graphique
695
gráfico
692
Handbooks, manuals, etc
632
Interviews
590
Aufsatzsammlung
554
Bibliographies
520
Congrès
514
Périodiques
501
Périodiques
494
Maps
486
dissertations
476
Statistiques
466
Festschriften
454
Handbooks and manuals
445
Academic Dissertation
441
doctoral dissertations
441
theses
441
masters theses
440
Autobiographies
401
Documentary films
350
carte géographique
344
map
344
mapa
344
Databases
339
Serial publications
339
Conference papers and proceedings
304
Pictorial works
298
more ...