Collection
Directory of Open Access Books
265
World Bank E-Library Archive
142
O'Reilly
135
wiso-net eBooks
114
Springer eBooks 2005-
35
OAPEN
18
International Monetary Fund
15
Springer Book Archives -2004
5
Emerald Business, Management and Economics eBook Collection Archive
2
Making of the Modern World
2
Eighteenth Century Collections Online / ECCO
1