Genre
Maps
109
Conference papers and proceedings
10
Graphs
7
Technical reports
6
Charts, diagrams, etc
4
Databases
4
Congresses
3
Documentary television programs
3
Educational television programs
3
Guidebooks
3
Nonfiction television programs
3
Popular works
3
Science television programs
3
Video recordings for the hearing impaired
3
Aerial photographs
2
Geological maps
2
Academic theses
1
Atlases
1
Drawings
1
Electronic government information
1
Festschriften
1
Photographs
1
Photographs from space
1
Remote-sensing maps
1