Genre
Periodicals
38
Maps
29
Handbooks and manuals
23
Statistics
13
Case studies
11
Technical reports
11
Conference papers and proceedings
6
Environmental impact statements
6
Bibliographies
4
Databases
3
Atlases
2
Catalogs
2
Census data
2
Congresses
2
Abstracts
1
Administrative regulations
1
Architectural drawings
1
Bathymetric maps
1
Blank forms
1
Dictionaries
1
Directories
1
Electronic government information
1
Guidebooks
1
Literature
1
Relief models
1
Tables (Data)
1
Telephone directories
1