Genre
Electronic books
2,605
Congresses
920
Periodicals
334
Electronic journals
97
Electronic book
66
Libros electronicos
61
Handbooks, manuals, etc
59
Case studies
51
Filmed lectures
34
Instructional films
26
Software
25
Problems, exercises, etc
21
Statistics
20
Databases
19
Textbooks
12
Atlases
7
Educational films
7
Electronic data processing documentation
7
Geographic information systems
6
Classification
5
Exhibitions
5
Television news programs
5
Bibliography
4
Charts, diagrams, etc
4
Documentary films
4
Film excerpts
4
Sources
4
Study guides
4
Computer network resources
3
Designs and plans
3
Dictionaries
3
Film clips
3
Observations
3
Problems and exercises
3
Code numbers
2
Cross-cultural studies
2
DVD-Video discs
2
Directories
2
History
2
Identification
2
Instructional television programs
2
Laboratory manuals
2
Music
2
Nonfiction television programs
2
Popular works
2
Programmed instruction
2
Style manuals
2
Terminology
2
Terms and phrases
2
Use studies
2
more ...