Genre
Periodicals
250
Statistics
220
Conference papers and proceedings
133
Handbooks and manuals
121
Congresses
89
Directories
56
Bibliographies
52
Serial publications
33
Case studies
14
Catalogs
14
Programmed instructional materials
14
Technical reports
13
Vital statistics
13
Census data
9
Abstracts
5
Cross-cultural studies
5
Databases
5
Classification
4
Dictionaries
4
Life skills guides
4
Treaties
4
Commercial treaties
3
Patents
3
Tables (Data)
3
Telephone directories
3
Trivia and miscellanea
3
Blank forms
2
Geographic information systems
2
Statistics, Medical
2
Annual reports
1
Biographies
1
Census, 1990
1
Examinations
1
Family histories
1
Forms
1
Interviews
1
Legislative hearings
1
Newspapers
1
Personal correspondence
1
Records (Documents)
1
Records and correspondence
1
Reference works
1
Registers (Lists)
1
Software
1
Sources
1
Style manuals
1