Genre
Statistics
1,624
Periodicals
374
Maps
227
Surveys
179
Handbooks and manuals
161
Bibliographies
134
Video recordings
113
Internet videos
111
Databases
77
Census data
76
Technical reports
66
Vital statistics
66
Conference papers and proceedings
61
Catalogs
41
Longitudinal studies
29
Topographic maps
26
Academic theses
25
Directories
24
Serial publications
22
Electronic government information
21
Statistics, Medical
21
Legislative hearings
19
Legislative materials
14
Demographic surveys
13
Dictionaries
13
Questionnaires
13
Congresses
12
Health surveys
10
Biographies
9
Blank forms
9
Remote-sensing maps
9
Tables (Data)
9
Census, 2010
8
Case studies
7
Forms
7
Soil surveys
7
Botanical surveys
6
Census, 2000
6
Guidebooks
6
Indexes
6
Zoological surveys
6
Data tape catalogs
5
Geographic information systems
5
Medical statistics
5
Census
4
Classification
4
Electronic books
4
Gazetteers
4
Pictures
4
Abstracts
3
more ...