Collection
O'Reilly
103
Springer eBooks 2005-
64
Springer Book Archives -2004
17
Directory of Open Access Books
6
wiso-net eBooks
4
Edward Elgar eBook Archive
3
DeGruyter MPG Collection
2
OAPEN
2
Cambridge Books Online
1
Editoria Italiana Online
1
Edward Elgar eBooks Collection Business & Economics
1
Emerald Business, Management and Economics eBook Collection Archive
1
JSTOR Open Access Books
1
MIT Press eBook Archive
1
Nomos
1