Genre
Legislative hearings
1,951
Legislative materials
1,853
Periodicals
1,360
Statistics
1,078
Maps
1,009
Conference papers and proceedings
991
Technical reports
817
Handbooks and manuals
574
Congresses
571
Bibliographies
381
Directories
188
Serial publications
139
Catalogs
119
Databases
101
Dictionaries
63
Case studies
57
Data dictionaries
53
Government publications
53
Census data
51
Treaties
47
Observations
46
Classification
43
Abstracts
40
Biographies
39
Longitudinal studies
38
Rules and practice
35
Indexes
29
Calendars
26
Drawings
26
Geographic information systems
26
Personal correspondence
24
Programmed instructional materials
24
Registers (Lists)
24
Records (Documents)
23
Tables (Data)
23
Guidebooks
18
Software
18
Commercial treaties
17
Topographic maps
16
Records and correspondence
15
Telephone directories
14
Census, 2010
13
Patents
13
Vital statistics
13
Resolutions (Law)
12
Resolutions (Laws)
12
Cross-cultural studies
11
Graphs
11
Blank forms
9
Cases
8
more ...