Genre
History
273
Congresses
214
Case studies
209
Nonfiction television programs
198
Internet videos
192
Conference papers and proceedings
155
Educational films
108
Handbooks, manuals, etc
105
Handbooks and manuals
60
Educational
43
Criticism, interpretation, etc
40
Statistics
36
Biography
30
Early works to 1800
30
Documentary films
25
Census data
23
Nonfiction films
23
Sources
23
Instructional films
22
Textbooks
21
Bibliography
20
Census
20
Congress
19
Juvenile literature
19
Documentary television programs
18
Biographies
17
Census, 2000
17
Short films
17
Film excerpts
16
Legislative hearings
16
Legislative materials
16
Problems, exercises, etc
15
Cross-cultural studies
14
Academic theses
12
Dictionaries
12
Instructional television programs
12
Popular works
12
Classification
11
Periodicals
11
e-books
10
Essays
9
Filmed lectures
9
Handbook
9
Juvenile works
8
Laboratory manuals
8
Early works
7
Fiction
7
Longitudinal studies
7
Problems and exercises
7
Encyclopedias
6
more ...