Genre
Electronic books
1,002
Periodicals
438
Education films
226
Electronic journals
142
Documentary films
136
Congresses
95
Publicaciones seriadas
75
Educational films
67
Classification
65
Instructional films
45
Biography
35
Libros electronicos
34
Short films
27
Study guides
25
Electronic book
16
Early works to 1800
13
Popular works
13
Publicaciones periodicas
13
Science films
13
Science
11
Handbooks, manuals, etc
10
Examinations, questions, etc
9
Juvenile literature
9
Problems, exercises, etc
8
Terminology
7
Textbooks
6
Zoology
6
Miscellanea
5
Television programs
5
Anecdotes
4
Documentary television programs
4
Encyclopedias
4
Instructional television programs
4
Nomenclature
4
Outlines, syllabi, etc
4
Bibliography
3
Case studies
3
DVD-Video discs
3
Dictionaries
3
Feature films
3
Interviews
3
Laboratory manuals
3
Video recordings for the hearing impaired
3
Databases
2
Humor
2
Nonfiction films
2
Nonfiction television programs
2
Pre-Linnean works
2
Programmed instruction
2
Tables
2
more ...