Genre
Conference papers and proceedings
6
Bibliographies
5
Handbooks and manuals
4
Databases
3
Abstracts
2
Congresses
2
Periodicals
2
CD-ROM catalogs
1
Catalogs
1
Electronic government information United States
1
Examinations
1
Maps
1
Programmed instructional materials
1
Technical reports
1
Trivia and miscellanea
1