Genre
Documentary television programs
31
Nature television programs
27
Wildlife television programs
14
Nonfiction television programs
13
Science television programs
13
Juvenile literature
9
Documentary films
7
Legislative materials
6
Maps
5
Classification
3
Environmental films
3
Handbooks, manuals, etc
3
Legislative hearings
3
Nonfiction films
3
Congresses
2
Guidebooks
2
History
2
Activity books
1
Bathymetric maps
1
Bibliography
1
Case studies
1
Children's maps
1
Conference papers and proceedings
1
Educational films
1
Feature films
1
Fiction
1
Field guides
1
Films for foreign speakers
1
Handbooks and manuals
1
Identification
1
Juvenile fiction
1
Novela juvenil
1
Panel discussions
1
Pictorial works
1
Popular works
1
Science films
1
Short films
1
Spanish language materials
1
Textbooks
1
Wildlife recovery plans
1