Collection
Oxford University Press
50
O'Reilly
15
Springer eBooks 2005-
13
Cambridge Books Online
8
JSTOR Open Access Books
7
MIT Press eBook Archive
6
Oxford Handbook Online
5
Digi20
4
Editoria Italiana Online
3
DeGruyter MPG Collection
2
Emerald Business, Management and Economics eBook Collection Archive
1
World Bank E-Library Archive
1