Collection
Directory of Open Access Books
104
Springer eBooks 2005-
67
Eighteenth Century Collections Online / ECCO
47
Springer Book Archives -2004
40
Elsevier ScienceDirect eBooks
12
Making of the Modern World
12
Wiley Online Books
8
World Bank E-Library Archive
8
Cambridge Books Online
7
O'Reilly
7
ACS Symposium Series
5
Landolt-Börnstein
4
OAPEN
4
ACS Advances in Chemistry
3
JSTOR Open Access Books
3
MIT Press eBook Archive
2
Netlibrary
2
Oxford University Press
2
DeGruyter MPG Collection
1
Emerald Business, Management and Economics eBook Collection Archive
1
Lecture Notes in Physics
1