Genre
Bibliographies
176
Periodicals
91
Abstracts
89
Nomenclature
63
Conference papers and proceedings
29
Surveys
22
Guidebooks
21
Congresses
18
Gazetteers
17
Maps
14
Tables (Data)
11
Festschriften
10
Handbooks and manuals
5
Indexes
5
Academic theses
4
Geographic information systems
4
Geological maps
3
Literature
3
Biographies
2
Case studies
2
Catalogs
2
Catalogs and collections
2
Classification
2
Directories
2
Photographs from space
2
Chronologies
1
Diaries
1
Government publications
1
Novels
1
Personal correspondence
1
Statistics
1
Technical reports
1