Genre
Legislative materials
365
History
351
Legislative hearings
317
Periodicals
236
Early works to 1800
206
Statistics
108
Congresses
104
Documentary films
91
Conference papers and proceedings
59
Nonfiction films
49
Documentary television programs
44
Case studies
40
Television news programs
30
Biography
27
Handbooks, manuals, etc
25
Poetry
24
Biographies
17
Commercial treaties
12
Educational films
12
Short films
12
Treaties
12
Early works
10
Feature films
10
Juvenile literature
10
Bibliography
9
Broadsides
8
Fiction
8
Anecdotes
7
Handbooks and manuals
7
Translations into English
7
Bibliographies
6
Criticism, interpretation, etc
6
Directories
6
Encyclopedias
6
Environmental films
6
Interviews
6
Newsreels
6
Nonfiction television programs
6
Subscribers' lists
6
Translations
6
Booksellers' advertisements
5
Congress
5
Dictionaries
5
Documentary
5
Drama
5
Film clips
5
Maps
5
Sources
5
Correspondence
4
Ethnographic films
4
more ...