Genre
Maps
311
Conference papers and proceedings
31
Guidebooks
26
Electronic government information
16
Charts, diagrams, etc
13
Graphs
13
Congresses
9
Bibliographies
8
Drawings
8
Academic theses
4
Nomenclature
3
Festschriften
2
Geological maps
2
Serial publications
2
Anecdotes
1
Atlases
1
Bathymetric maps
1
CMU author
1
Directories
1
Gazetteers
1
Indexes
1
Periodicals
1
Statistics
1
Technical reports
1
Topographic maps
1