Collection
Directory of Open Access Books
171
National Center for Biotechnology Information
14
World Bank E-Library Archive
13
International Monetary Fund
10
Henry Stewart Talks
8
DeGruyter MPG Collection
7
OAPEN
7
O'Reilly
6
Ethnographic Video Online Vol. 1
3
JSTOR Open Access Books
3
wiso-net eBooks
3
Digi20
2
Eighteenth Century Collections Online / ECCO
2
Elsevier eBook collection Mathematics
2
ACS Symposium Series
1
Bloomsbury Education and Childhood Studies
1
Cambridge Books Online
1
Duncker & Humblot eBooks 2007-
1
Oxford University Press
1