Genre
Periodicals
119
Abstracts
82
Conference papers and proceedings
27
Statistics
21
Congresses
19
Handbooks and manuals
18
Bibliographies
16
Directories
13
Catalogs
11
Databases
9
Case studies
6
Cross-cultural studies
6
Pictures
6
Posters
6
Literature
5
Indexes
4
Serial publications
4
Video recordings
4
Biographies
3
Exhibition catalogs
3
Maps
3
Blank forms
2
Coloring books
2
Forms
2
Puzzles and games
2
Treaties
2
Video catalogs
2
Catalogs and collections
1
Census data
1
Controlled vocabularies
1
Dictionaries
1
Fiction
1
Filmographies
1
Geological maps
1
Government publications
1
Interactive multimedia
1
Legislative hearings
1
Longitudinal studies
1
Microform catalogs
1
Officers' handbooks
1
Personal narratives
1
Photographs from space
1
Registers (Lists)
1
Software
1
Soldiers' handbooks
1
Textbooks
1
Use studies
1