Genre
Maps
193
Conference papers and proceedings
173
Technical reports
78
Handbooks and manuals
74
Congresses
42
Periodicals
36
Statistics
15
Classification
14
Bibliographies
13
Case studies
13
Databases
10
Directories
9
Serial publications
8
Legislative hearings
7
Soil surveys
7
Academic theses
6
Biographies
6
Dictionaries
6
Encyclopedias
5
Video recordings
5
Laboratory manuals
4
Abstracts
3
Coloring books
3
Pictures
3
Posters
3
Remote-sensing maps
3
Sound recordings
3
Festschriften
2
Geographic information systems
2
Graphs
2
Art
1
Atlases
1
Autobiographies
1
Catalogs
1
Charts, diagrams, etc
1
Comics (Graphic works)
1
Educational television programs
1
Electronic books
1
Electronic government information
1
Environmental impact statements
1
Films for the hearing impaired
1
Geological maps
1
Graphic novels
1
Identification
1
Indexes
1
Legislative materials
1
Literature
1
Nonfiction television programs
1
Problems and exercises
1
Science television programs
1
more ...