Genre
Conference papers and proceedings
786
Periodicals
752
Technical reports
597
Video recordings
373
Internet videos
371
Legislative hearings
369
Treaties
318
Handbooks and manuals
289
Bibliographies
252
Legislative materials
251
Statistics
166
Congresses
157
Case studies
105
Directories
105
Statutes and codes
58
Catalogs
53
Serial publications
52
Biographies
51
Academic theses
47
Databases
42
Festschriften
39
Abstracts
32
Educational films
30
Maps
29
Dictionaries
24
Laboratory manuals
21
Documentary television programs
19
Instructional television programs
19
Pictures
18
Documentary films
17
Nonfiction films
16
Indexes
14
Nonfiction television programs
14
Textbooks
14
Encyclopedias
13
Medical statistics
13
Posters
13
Software
12
Autobiographies
9
Video recordings for the hearing impaired
8
Census data
7
Cross-cultural studies
7
Interviews
7
Problems and exercises
7
Electronic books
6
Literature
6
Registers (Lists)
6
Tables (Data)
6
Trivia and miscellanea
6
Electronic government information
5
more ...