Collection
Music Online Reference
133
Directory of Open Access Books
43
Oxford University Press
14
Making of the Modern World
11
OAPEN
10
Eighteenth Century Collections Online / ECCO
8
Digi20
6
Cambridge Books Online
5
Anthropology Online
1
DeGruyter MPG Collection
1
JSTOR Open Access Books
1
Mohr Siebeck eBooks
1
Netlibrary
1
Oxford Handbook Online
1
Springer Book Archives -2004
1