Genre
Electronic books
282
Biography
16
Congresses
14
Case studies
13
Cross-cultural studies
13
Bibliography
4
Longitudinal studies
4
Handbooks, manuals, etc
3
History
3
Juvenile literature
3
Sources
3
Statistics
3
Textbooks
3
Conference papers and proceedings
1
Encyclopedias
1
Fiction
1
Government publications
1
Interviews
1
Popular works
1
Sex instruction for children
1