Genre
Maps
209
Conference papers and proceedings
10
Congresses
7
Geological maps
6
Atlases
4
Periodicals
4
Thematic maps
4
Bibliographies
3
Statistics
2
Technical reports
2
Textbooks
2
Databases
1
Fiction
1
Government publications
1
Handbooks and manuals
1
Programmed instructional materials
1
Topographic maps
1