Genre
Electronic books
3,579
Congresses
1,113
Periodicals
988
History
818
Conference papers and proceedings
693
Case studies
499
Biography
348
Dictionaries
294
Biographies
231
Statistics
212
Handbooks, manuals, etc
159
Documentary films
143
Electronic journals
133
Directories
123
Handbooks and manuals
110
Encyclopedias
102
Nonfiction films
100
Bibliography
82
Textbooks
79
Internet videos
76
Aufsatzsammlung
75
Interviews
63
Video recordings
63
Juvenile literature
61
Études de cas
59
Autobiographies
55
Serial publications
55
Bibliographies
52
Electronic book
51
Feature films
50
Databases
47
Environmental films
46
Sources
46
Périodiques
45
Congrès
43
Pictorial works
41
Congrès
35
DVD-Video discs
34
Video recordings for the hearing impaired
34
Essays
33
Maps
32
Documentary television programs
31
Conference papers and proceedings
29
Cross-cultural studies
29
Juvenile works
28
Academic theses
25
Periodical
23
Périodiques
22
Études de cas
22
CD-ROMs
21
more ...