Collection
Springer eBooks 2005-
220
O'Reilly
213
Directory of Open Access Books
167
Springer Book Archives -2004
104
National Center for Biotechnology Information
21
OAPEN
8
JSTOR Open Access Books
3
MIT Press eBook Archive
3
Emerald Business, Management and Economics eBook Collection Archive
2
ACS Symposium Series
1
Eighteenth Century Collections Online / ECCO
1