Collection
Eighteenth Century Collections Online / ECCO
177
Springer eBooks 2005-
52
Springer Book Archives -2004
32
Directory of Open Access Books
28
Digitale Sammlung Privatrecht (MPIER)
6
Making of the Modern World
2
OAPEN
2
Cambridge Books Online
1
Edward Elgar eBook Archive
1
JSTOR Open Access Books
1
Lecture Notes in Computer Science
1
Wiley Online Books
1
World Bank E-Library Archive
1