Collection
Springer eBooks 2005-
230
O'Reilly
100
Springer Book Archives -2004
11
Eighteenth Century Collections Online / ECCO
10
wiso-net eBooks
10
Emerald Business, Management and Economics eBook Collection Archive
9
Directory of Open Access Books
8
ACS Symposium Series
3
Edward Elgar eBook Archive
3
Making of the Modern World
3
National Center for Biotechnology Information
2
OAPEN
2
ACS Advances in Chemistry
1
Editoria Italiana Online
1
JSTOR Open Access Books
1
Netlibrary
1
Oxford University Press
1