Genre
Electronic books
19
Case studies
4
Congresses
4
Popular works
4
Educational films
2
Film excerpts
2
Filmed interviews
2
Biography
1
Documentary television programs
1
Educational television programs
1
Electronic book
1
Electronic journals
1
Instructional films
1
Juvenile literature
1
Lectures
1
Nonfiction films
1
Periodicals
1
Poetry
1