Collection
Directory of Open Access Books
138
Oxford University Press
52
OAPEN
37
Digi20
27
Editoria Italiana Online
14
JSTOR Open Access Books
14
National Center for Biotechnology Information
9
Cambridge Books Online
8
DeGruyter MPG Collection
8
Eighteenth Century Collections Online / ECCO
7
O'Reilly
6
Making of the Modern World
4
Making of Modern Law / Legal Treatises
3
Netlibrary
3
Oxford Handbook Online
2
Digital Karl Barth Library
1
Emerald Business, Management and Economics eBook Collection Archive
1