Collection
Eighteenth Century Collections Online / ECCO
32
Springer eBooks 2005-
22
Springer Book Archives -2004
8
Directory of Open Access Books
5
Cambridge Books Online
3
Oxford University Press
3
Brill Nijhoff E-Books Collections 2006-2008
1
Brill Nijhoff E-Books Collections 2009-2014
1
Making of the Modern World
1
OAPEN
1