Collection
Directory of Open Access Books
240
Springer eBooks 2005-
224
Making of the Modern World
79
OAPEN
28
National Center for Biotechnology Information
9
Oxford University Press
9
JSTOR Open Access Books
5
Cambridge Books Online
4
Digi20
2
Emerald Business, Management and Economics eBook Collection Archive
2
MIT Press eBook Archive
2
Oxford Handbook Online
2
Springer Book Archives -2004
2
O'Reilly
1