Genre
Electronic books
History
31
Sources
18
Correspondence
13
Personal correspondence
10
Electronic book
8
Correspondance
7
Biography
6
Biographies
5
Congresses
4
Dictionaries
3
Conference papers and proceedings
2
Congrès
2
Criticism, interpretation, etc
2
Claims
1
Congresses,
1
Electronic resource
1
Longitudinal studies
1