Genre
Maps
363
Road maps
181
Periodicals
32
Atlases
21
Thematic maps
17
Statistics
8
Guidebooks
7
Legislative hearings
5
Topographic maps
5
Tourist maps
5
Legislative materials
4
Bibliographies
3
Handbooks and manuals
2
Statutes and codes
2
Academic theses
1
Biographies
1
Conference papers and proceedings
1
Databases
1
Environmental impact statements
1
Geological maps
1
Illustrated works
1
Literature
1
Outline maps
1
Remote-sensing maps
1
Serial publications
1
Specifications
1
Surveys
1
Technical reports
1