Genre
Electronic books
3,777
Periodicals
1,040
Early works to 1800
574
Newspapers
360
Documentary films
281
Congresses
206
Libros electronicos
190
Electronic journals
167
Publicaciones Seriadas
116
Biography
114
Case studies
107
Education films
101
Statistics
57
Educational films
55
Electronic book
51
Documentary television programs
50
Poetry
48
Nonfiction films
47
DVD-Video discs
44
Feature films
36
Handbooks, manuals, etc
34
Juvenile literature
34
Television news programs
34
Fiction
32
Translations into English
27
Sources
22
Publicaciones periodicas
21
Dictionaries
19
Pictorial works
19
Anecdotes
16
Environmental television programs
15
Drama
14
History
14
Poems
14
Short films
14
Video recordings for the hearing impaired
13
Bibliography
12
Correspondence
12
Interviews
12
Essays
11
Letters
11
Census, 1940
10
Encyclopedias
10
Maps
9
Statistics, Vital
9
Manuals (Handbooks)
8
Reviews
8
Conferencias
7
Biographical films
6
Catalogs
6
more ...