Collection
Springer eBooks 2005-
1,348
Directory of Open Access Books
178
Springer Book Archives -2004
25
World Bank E-Library Archive
14
OAPEN
10
ACS Symposium Series
5
JSTOR Open Access Books
3
O'Reilly
3
Cambridge Books Online
2
Elsevier ScienceDirect eBooks
2
Wiley Online Books
2
ACS Advances in Chemistry
1
Eighteenth Century Collections Online / ECCO
1
Oxford University Press
1