نوع المادة
Electronic books
137,982
Periodicals
59,230
History
54,987
Statistics
47,682
Congresses
47,446
Conference papers and proceedings
29,703
Biography
29,415
Case studies
28,321
Biographies
19,087
Handbooks, manuals, etc
13,010
Early works to 1800
10,647
Directories
9,033
Statistiques
8,999
Périodiques
8,822
Electronic journals
8,800
Congrès
7,933
Handbooks and manuals
7,739
Études de cas
7,733
Government publications
7,692
Juvenile literature
6,644
Aufsatzsammlung
6,029
Documentary films
5,904
Dictionaries
5,073
Autobiographies
4,934
Sources
4,508
Bibliography
4,463
Census data
3,947
Actes de congrès
3,879
Academic theses
3,744
Cross-cultural studies
3,694
Nonfiction films
3,559
Interviews
3,481
Guides, manuels, etc
3,395
Television news programs
3,288
Téléjournaux
3,248
Congress
3,021
Guides et manuels
2,814
Pictorial works
2,805
Thèses et écrits académiques
2,794
Juvenile works
2,733
Bibliographies
2,466
reference
2,443
referencia
2,443
Periodical
2,350
Feature films
2,321
bibliography
2,309
bibliographie
2,306
référence bibliographique
2,248
Documentaires
2,199
periodicals
2,185
المزيد ...