Collection
Springer eBooks 2005-
106
MIT Press eBook Archive
31
Karger eBooks Collection 1997-2013
28
Directory of Open Access Books
23
Springer Book Archives -2004
22
Oxford University Press
16
Henry Stewart Talks
8
Elsevier ScienceDirect eBooks
7
Oxford Handbook Online
5
Cambridge Books Online
4
O'Reilly
4
ACS Symposium Series
3
DeGruyter MPG Collection
3
JSTOR Open Access Books
1
National Center for Biotechnology Information
1
Wiley Online Books
1