Collection
Springer eBooks 2005-
374
Springer Book Archives -2004
112
Directory of Open Access Books
92
ACS Symposium Series
57
ACS Advances in Chemistry
19
Wiley Online Books
11
O'Reilly
4
DeGruyter MPG Collection
1
Eighteenth Century Collections Online / ECCO
1
Elsevier ScienceDirect eBooks
1
National Center for Biotechnology Information
1