Genre
Maps
904
Conference papers and proceedings
69
Statistics
64
Handbooks and manuals
60
Bibliographies
49
Technical reports
48
Periodicals
42
Databases
31
Congresses
29
Sound recordings
12
Case studies
10
Electronic government information
10
Legislative hearings
10
Dictionaries
9
Serial publications
9
Geological maps
7
Geographic information systems
6
Graphs
6
Video recordings for the hearing impaired
6
Atlases
5
Thematic maps
5
Academic theses
4
Documentary television programs
4
Educational television programs
4
Nonfiction television programs
4
Popular works
4
Science television programs
4
Tables (Data)
4
Video recordings
4
Government publications
3
Topographic maps
3
Charts, diagrams, etc
2
Directories
2
Documentary films
2
Feature films
2
Guidebooks
2
Nonfiction films
2
Programmed instructional materials
2
Registers (Lists)
2
Textbooks
2
Abstracts
1
Biographical films
1
Data sets
1
Drama
1
Environmental films
1
Fiction
1
Fiction films
1
Films for the hearing impaired
1
Indexes
1
Interviews
1
more ...