Collection
Springer eBooks 2005-
1,279
Directory of Open Access Books
764
Springer Book Archives -2004
317
Eighteenth Century Collections Online / ECCO
44
ACS Symposium Series
41
Making of the Modern World
34
O'Reilly
29
ACS Advances in Chemistry
18
Cambridge Books Online
8
Henry Stewart Talks
7
DeGruyter MPG Collection
5
World Bank E-Library Archive
4
Elsevier ScienceDirect eBooks
3
OAPEN
3
Landolt-Börnstein
2
National Center for Biotechnology Information
2
Oxford University Press
2
Elsevier eBook collection Mathematics
1
MIT Press eBook Archive
1