Genre
Congresses
33
Conference papers and proceedings
24
Biography
19
Documentary television programs
17
History
15
Nature television programs
15
Periodicals
14
Pictorial works
12
Maps
11
Biographies
10
Science television programs
8
Internet videos
7
Video recordings for the hearing impaired
7
Documentary films
6
Autobiographies
5
Criticism, interpretation, etc
5
Exhibitions
5
Nature films
5
Nonfiction television programs
5
Periodical
5
Wildlife television programs
5
Catalogs
4
Congrès
4
Exhibition catalogs
4
Fiction
4
In art
4
Nonfiction films
4
Video recordings
4
Bibliography
3
Conference papers and proceedings
3
Congress
3
DVD-Video discs
3
Educational films
3
Feature films
3
Juvenile literature
3
Pamphlets
3
Actes de congrès
2
Articles
2
Bibliographies
2
Case studies
2
Conference proceedings
2
Early maps
2
Early works to 1800
2
Electronic books
2
Essays
2
Etchings (prints)
2
Handbills
2
Illustrated works
2
Juvenile works
2
Lists (document genres)
2
more ...