Genre
Case studies
54
Legislative materials
32
Legislative hearings
23
Congresses
9
Longitudinal studies
9
Filmed lectures
7
Bibliography
4
Documentary films
4
Interviews
4
Handbooks, manuals, etc
3
History
3
Cross-cultural studies
2
Educational films
2
Biography
1
Handbooks
1
Legislative histories
1
Nonfiction films
1
Periodicals
1
Statistics
1
Yearbooks
1