Genre
Sources
Electronic books
147
Broadsides
28
Early works to 1800
19
Periodicals
11
Bibliography
7
Catalogs
5
Charters
4
Archives
3
Genealogy
3
Microform catalogs
3
Textbooks
3
Treaties
3
Charters, grants, privileges
2
Digests
2
Facsimiles
2
Indexes
2
Newspapers
2
Congresses
1
Correspondence
1
History
1
Imprints
1
Pictorial works
1
Recueils, répertoires, etc
1