Collection
Directory of Open Access Books
755
O'Reilly
18
National Center for Biotechnology Information
15
wiso-net eBooks
7
Cambridge Books Online
5
Eighteenth Century Collections Online / ECCO
5
OAPEN
4
DeGruyter MPG Collection
3
International Monetary Fund
3
JSTOR Open Access Books
3
MIT Press eBook Archive
3
World Bank E-Library Archive
3
Duncker & Humblot eBooks 2007-
2
ACS Symposium Series
1
MIT Press Direct to Open
1
Making of the Modern World
1
Netlibrary
1
Oxford Handbook Online
1
Oxford University Press
1
Social Theory (Alexander Street Press)
1
Springer eBooks 2005-
1