Genre
Legislative hearings
27
Databases
23
Statistics
13
Periodicals
11
Handbooks and manuals
10
Bibliographies
6
Directories
5
Catalogs
4
Conference papers and proceedings
4
Legislative materials
4
Technical reports
4
Code words
3
Geographic information systems
3
Case studies
2
Code numbers
2
Congresses
2
Abstracts
1
Census data
1
Controlled vocabularies
1
Data tape catalogs
1
Dictionaries
1
Drama
1
Electronic newsletters
1
Registers (Lists)
1
Serial publications
1
Sound recordings
1