Genre
Databases
7
Statistics
7
Maps
6
Government publications
5
History
5
Census, 22nd, 2000
3
Sources
3
Census, 2000
2
Congresses
2
Handbooks, manuals, etc
2
Periodicals
2
CD-ROMs
1
Census, 21st, 1990
1
Conference papers and proceedings
1
Congress
1
DVDs
1
Forecasts
1
Forms
1
Interactive multimedia
1
Popular works
1
Records and correspondence
1