Collection
Directory of Open Access Books
609
Springer eBooks 2005-
554
O'Reilly
474
Springer Book Archives -2004
158
ACS Symposium Series
28
OAPEN
28
Elsevier ScienceDirect eBooks
7
Emerald Business, Management and Economics eBook Collection Archive
6
Eighteenth Century Collections Online / ECCO
5
MIT Press eBook Archive
5
JSTOR Open Access Books
2
Cambridge Books Online
1
DeGruyter MPG Collection
1
Oxford University Press
1