Collection
Making of the Modern World
927
OECD Books and Papers
100
Directory of Open Access Books
89
Springer eBooks 2005-
24
OAPEN
12
Springer Book Archives -2004
10
Eighteenth Century Collections Online / ECCO
5
Oxford University Press
4
DeGruyter MPG Collection
2
Cambridge Books Online
1
Digi20
1
MIT Press eBook Archive
1
National Center for Biotechnology Information
1
World Bank E-Library Archive
1