Genre
Congresses
17
Classification
13
Biography
3
Bibliography
2
Popular works
2
Textbooks
2
Bibliographie
1
Case studies
1
Cross-cultural studies
1
Early works to 1800
1
Electronic books
1
Folklore
1
Mikroform
1
Miscellanea
1
Online-Publikation
1
Periodicals
1
Programmed instruction
1
Périodiques
1
Readers for new literates
1
Sources
1
popular works
1