Collection
Springer eBooks 2005-
729
Springer Book Archives -2004
566
Eighteenth Century Collections Online / ECCO
468
Directory of Open Access Books
67
Springer Lecture Notes Archiv 1964-1996
64
Wiley Online Books
54
Making of the Modern World
12
Cambridge Books Online
5
DeGruyter MPG Collection
4
OAPEN
4
Elsevier ScienceDirect eBooks
2
O'Reilly
2
JSTOR Open Access Books
1
MIT Press eBook Archive
1