Collection
O'Reilly
638
Springer eBooks 2005-
278
Directory of Open Access Books
188
MIT Press eBook Archive
53
OAPEN
35
JSTOR Open Access Books
20
DeGruyter MPG Collection
8
Oxford Handbook Online
7
Oxford University Press
7
Cambridge Books Online
6
Digi20
3
Edward Elgar eBook Archive
3
Elsevier ScienceDirect eBooks
2
Brill Nijhoff E-Books Collections 2009-2014
1
Emerald Business, Management and Economics eBook Collection Archive
1
MIT Press Direct to Open
1
Netlibrary
1
Wiley Online Books
1