Genre
Juvenile literature
37
Juvenile works
20
Documentary films
14
Early works to 1800
13
Educational films
12
Documentary television programs
11
Fiction
7
Juvenile fiction
7
Legislative materials
7
Nature television programs
7
Science television programs
7
Short films
7
Instructional television programs
6
Legislative hearings
6
Nonfiction television programs
5
Picture books
5
Television news programs
5
Miscellanea
4
Observations
4
Popular works
4
Science films
4
Broadsides
3
Case studies
3
Folklore
3
History
3
Poetry
3
Congresses
2
Instructional and educational works
2
Juvenile poetry
2
Maps
2
Pop-up books
2
Specimens
2
Activity books
1
Activity programs
1
Adventure stories
1
Animated films
1
Autographs
1
Bibliography
1
Children's poetry
1
Children's stories
1
Collections
1
Conference papers and proceedings
1
Congress
1
Devices (Heraldry)
1
Environmental films
1
Internet videos
1
Literary collections
1
Mechanical works
1
Nature films
1
Nonfiction films
1
more ...