Collection
ACS Advances in Chemistry
11
ACS Symposium Series
26
Cambridge Books Online
3
DeGruyter MPG Collection
1
Directory of Open Access Books
28
MIT Press eBook Archive
1
National Center for Biotechnology Information
4
O'Reilly
3
Springer Book Archives -2004
65
Springer eBooks 2005-
399
World Bank E-Library Archive
18