Genre
Periodicals
25
Conference papers and proceedings
21
Statistics
15
Legislative materials
14
Technical reports
14
Maps
12
Legislative hearings
11
Congresses
9
Handbooks and manuals
8
Illustrated works
6
Tables (Data)
6
Pictures
5
Abstracts
3
Bibliographies
3
Serial publications
2
Statutes and codes
2
Atlases
1
Databases
1
Documentary films
1
Documentary television programs
1
Electronic books
1
Electronic government information
1
Electronic journals
1
Encyclopedias
1
Fiction
1
Government publications
1
Graphs
1
Nonfiction television programs
1
Thematic maps
1
Video recordings
1
Video recordings for the hearing impaired
1
Western fiction
1