Genre
Periodicals
1,263
Legislative hearings
1,080
Legislative materials
868
Case studies
801
Congresses
729
Conference papers and proceedings
529
History
510
Nonfiction television programs
373
Internet videos
355
Handbooks, manuals, etc
210
Bibliography
173
Documentary films
173
Educational films
150
Biography
120
Handbooks and manuals
102
Congress
100
Dictionaries
100
Popular works
100
Documentary television programs
92
Computer network resources
81
Statistics
80
Television news programs
76
Biographies
74
Nonfiction films
65
Cross-cultural studies
57
Short films
43
Film excerpts
36
Treaties
36
Filmed lectures
34
Interviews
33
Juvenile literature
33
Bibliographies
32
Directories
30
Criticism, interpretation, etc
29
Legislative histories
29
Rules and practice
29
Textbooks
26
Academic theses
25
Encyclopedias
25
Technical reports
25
Instructional films
24
Sources
22
Educational television programs
19
Abstracts
18
Fiction
18
Statutes and codes
18
Instructional television programs
17
Observations
16
Juvenile works
15
Longitudinal studies
15
more ...