Collection
Eighteenth Century Collections Online / ECCO
111
National Center for Biotechnology Information
77
Directory of Open Access Books
48
Springer eBooks 2005-
28
Making of the Modern World
17
OAPEN
13
Springer Book Archives -2004
13
O'Reilly
11
Cambridge Books Online
1
Digi20
1
Edward Elgar eBooks Collection Business & Economics
1
Emerald Business, Management and Economics eBook Collection Archive
1
Ethnographic Video Online Vol. 1
1
JSTOR Open Access Books
1
Oxford University Press
1