Genre
Legislative hearings
779
Legislative materials
585
Congresses
448
Conference papers and proceedings
387
Documentary films
285
History
279
Case studies
218
Periodicals
128
Television news programs
118
Documentary television programs
97
Audiobooks
95
Educational films
63
Instructional films
54
Short films
43
Nonfiction films
41
Livres audio
40
Criticism, interpretation, etc
28
Congress
27
Juvenile literature
25
Rules and practice
23
Interviews
22
Handbooks, manuals, etc
20
Biography
19
Patents
18
Nonfiction television programs
16
Handbooks and manuals
15
Internet videos
14
Biographies
13
Juvenile works
13
Technical reports
11
Travelogues (Television programs)
11
Essays
10
Online media
9
Educational television programs
8
Electronic books
8
Fiction
8
Science television programs
8
Blogs
7
Early works to 1800
7
Forecasts
7
Legislative histories
7
Sources
7
Statistics
7
Animated films
6
Feature films
6
Popular works
6
Études de cas
6
Actes de congrès
5
Census
5
Cross-cultural studies
5
more ...