Genre
Statistics
20
Periodicals
15
Databases
14
Census data
5
Conference papers and proceedings
4
Handbooks and manuals
4
Academic theses
3
Directories
3
Forecasts
3
Legislative hearings
3
Serial publications
2
Bibliographies
1
Catalogs
1
Congresses
1
Educational films
1
Internet videos
1
Maps
1
Video recordings
1
Vital statistics
1