Genre
Technical reports
55
Maps
48
Legislative materials
34
Legislative hearings
27
Guidebooks
25
Bibliographies
22
Statistics
20
Conference papers and proceedings
17
Biographies
15
Classification
13
Environmental impact statements
10
Databases
9
Electronic government information
8
Statutes and codes
8
Directories
7
Autobiographies
5
Catalogs
5
Surveys
5
Handbooks and manuals
4
Congresses
3
Festschriften
3
Geographic information systems
3
Aerial photographs
2
Case studies
2
Illustrated works
2
Nomenclature
2
Sources
2
Union catalogs
2
Academic theses
1
Anecdotes
1
Blank forms
1
Census data
1
Government publications
1
Indexes
1
Interviews
1
Literature
1
Oral histories
1
Personal correspondence
1
Tours
1