Genre
Congresses
18
Periodicals
7
Sources
7
Early works to 1850
3
Cross-cultural studies
2
Early works to 1800
2
Statistics
2
Abstracts
1
Case studies
1
Constitution
1
Controversial literature
1
Diaries
1
Early works to 1870
1
Folklore
1
Popular works
1
Readers for new literates
1
Textbooks
1
Études de cas
1