Collection
Springer Book Archives -2004
52
Directory of Open Access Books
50
Springer eBooks 2005-
44
National Center for Biotechnology Information
24
ACS Symposium Series
19
Elsevier ScienceDirect eBooks
14
O'Reilly
10
MIT Press eBook Archive
3
DeGruyter MPG Collection
1
MIT Press Direct to Open
1
Wiley Online Books
1