Genre
Conference papers and proceedings
787
Periodicals
753
Technical reports
601
Video recordings
373
Internet videos
371
Legislative hearings
369
Treaties
318
Handbooks and manuals
290
Bibliographies
253
Legislative materials
251
Statistics
166
Congresses
157
Case studies
107
Directories
105
Statutes and codes
58
Catalogs
53
Biographies
52
Serial publications
52
Academic theses
47
Databases
42
Festschriften
39
Abstracts
32
Educational films
30
Maps
30
Dictionaries
24
Laboratory manuals
21
Documentary television programs
19
Instructional television programs
19
Pictures
19
Documentary films
17
Nonfiction films
16
Indexes
14
Nonfiction television programs
14
Textbooks
14
Encyclopedias
13
Medical statistics
13
Posters
13
Software
13
Trivia and miscellanea
12
Autobiographies
9
Cross-cultural studies
8
Video recordings for the hearing impaired
8
Census data
7
Interviews
7
Problems and exercises
7
Questionnaires
7
Electronic books
6
Literature
6
Registers (Lists)
6
Tables (Data)
6
more ...