Collection
Springer eBooks 2005-
447
O'Reilly
283
Directory of Open Access Books
184
Eighteenth Century Collections Online / ECCO
12
OAPEN
9
wiso-net eBooks
3
Cambridge Books Online
2
Duncker & Humblot eBooks 2007-
2
Elsevier ScienceDirect eBooks
2
International Monetary Fund
2
Making of the Modern World
2
JSTOR Open Access Books
1
MIT Press eBook Archive
1