Collection
Springer eBooks 2005-
222
Springer Book Archives -2004
150
Directory of Open Access Books
89
Making of the Modern World
34
National Center for Biotechnology Information
14
MIT Press eBook Archive
13
OAPEN
7
Oxford University Press
5
Cambridge Books Online
4
Elsevier ScienceDirect eBooks
4
DeGruyter MPG Collection
2
Brill Nijhoff E-Books Collections 2006-2008
1
JSTOR Open Access Books
1
Springer Protocols Archive 1981-2004
1