Genre
Maps
311
Guidebooks
29
Databases
22
Bibliographies
19
Conference papers and proceedings
11
Academic theses
9
Catalogs
4
Topographic maps
4
Graphs
3
Bathymetric maps
2
Chronologies
2
Congresses
2
Periodicals
2
Remote-sensing images
2
Aerial views
1
Atlases
1
CMU author
1
Charts, diagrams, etc
1
Dictionaries
1
Digital maps
1
Festschriften
1
Geospatial data
1
Illustrated works
1
Nomenclature
1
Pictures
1
Posters
1
Remote-sensing maps
1
Technical reports
1