Genre
Conference papers and proceedings
9
Guidebooks
7
Electronic government information
5
Technical reports
5
Academic theses
3
Bibliographies
3
Catalogs
1
Classification
1
Congresses
1
Databases
1
Geographic information systems
1
Handbooks and manuals
1
Maps
1
Nomenclature
1
Periodicals
1
Serial publications
1
Statistics
1