Genre
Periodicals
132
Conference papers and proceedings
66
Bibliographies
47
Maps
44
Legislative hearings
22
Serial publications
19
Technical reports
19
Congresses
16
Statistics
15
Case studies
5
Legislative materials
4
Databases
3
Geographic information systems
3
Handbooks and manuals
3
Bathymetric maps
2
Directories
2
Remote-sensing maps
2
Thematic maps
2
Topographic maps
2
Atlases
1
Biographies
1
CMU author
1
Catalogs
1
Chronologies
1
Documentary films
1
Documentary television programs
1
Literature
1
Nonfiction television programs
1
Video recordings for the hearing impaired
1