Genre
Electronic books
77
Early works to 1800
10
Sources
7
Periodicals
5
Examinations, questions, etc
4
Study guides
4
Congresses
3
Handbooks, manuals, etc
3
Charters, grants, privileges
2
Electronic journals
2
Broadsides
1
Case studies
1
Digests
1
Encyclopedias
1
Forms
1
Problems, exercises, etc
1
Textbooks
1