Genre
Electronic books
371
Congresses
81
Instructional films
34
Periodicals
33
Handbooks, manuals, etc
21
Electronic journals
9
Software
9
Libros electronicos
4
Documentary films
3
Electronic book
3
Juvenile literature
3
Charts, diagrams, etc
2
Study guides
2
Case studies
1
Computer games
1
Congressen (vorm)
1
Documentary television programs
1
Educational films
1
Encyclopedias
1
Geographic information systems
1
Outlines, syllabi, etc
1
Textbooks
1