Collection
Springer Book Archives -2004
99
Springer eBooks 2005-
65
Oxford University Press
14
Directory of Open Access Books
9
Eighteenth Century Collections Online / ECCO
8
Cambridge Books Online
5
Elsevier eBook collection Mathematics
3
Digi20
2
Making of the Modern World
2
OAPEN
2
JSTOR Open Access Books
1
MIT Press eBook Archive
1