Genre
Maps
991
Topographic maps
225
Statistics
11
Periodicals
10
Conference papers and proceedings
5
Congresses
4
Case studies
3
Legislative hearings
3
Bibliographies
2
Environmental impact statements
2
Aerial photographs
1
Dictionaries
1
Early works to 1800
1
Facsimiles
1
Index maps
1
Remote-sensing maps
1
Technical reports
1
Thematic maps
1
Video recordings
1