Gatunek
Electronic books
121
Early works to 1800
66
Bills
26
Case studies
7
Electronic book
7
Biography
6
Sources
5
Congresses
4
Documentary television programs
3
Maps
3
Petitions
3
Cross-cultural studies
2
DVD-Video discs
2
Educational films
2
Interviews
2
Treaties
2
Archival resources
1
Atlases
1
Broadsides
1
Diaries
1
Documentary films
1
Feature films
1
Fiction
1
Film excerpts
1
Genealogy
1
Guidebooks
1
History
1
Juvenile literature
1
Made-for-TV movies
1
Nonfiction films
1
Nonfiction television programs
1
Online news
1
Periodicals
1
Pictorial works
1
Statistics
1
Television mini-series
1
Television programs
1
Video recordings for the hearing impaired
1