Collection
Springer eBooks 2005-
2,079
Springer Book Archives -2004
1,593
Directory of Open Access Books
125
Karger eBooks Collection 1997-2013
38
O'Reilly
21
Elsevier ScienceDirect eBooks
13
JSTOR Open Access Books
10
Oxford Handbook Online
8
Oxford University Press
6
ACS Symposium Series
5
Eighteenth Century Collections Online / ECCO
2
Springer Protocols Archive 1981-2004
1
Wiley Online Books
1
World Bank E-Library Archive
1