Collection
Cambridge Books Online
8
DeGruyter MPG Collection
2
Digi20
2
Directory of Open Access Books
75
Editoria Italiana Online
1
Elsevier eBook collection Mathematics
1
JSTOR Open Access Books
9
MIT Press eBook Archive
10
Netlibrary
2
O'Reilly
1
OAPEN
18
Oxford Handbook Online
3
Oxford University Press
18
Social Theory (Alexander Street Press)
1
Springer Book Archives -2004
24
Springer eBooks 2005-
144