Collection
OECD Books and Papers
321
National Center for Biotechnology Information
287
Directory of Open Access Books
263
Springer eBooks 2005-
167
JSTOR Open Access Books
73
Springer Book Archives -2004
50
OAPEN
34
Cambridge Books Online
27
O'Reilly
25
MIT Press eBook Archive
22
ACS Symposium Series
11
DeGruyter MPG Collection
10
Oxford University Press
10
Emerald Business, Management and Economics eBook Collection Archive
9
World Bank E-Library Archive
8
Edward Elgar eBook Archive
3
ACS Advances in Chemistry
1
Brill Nijhoff E-Books Collections 2009-2014
1
Elsevier ScienceDirect eBooks
1
JSTOR Books
1
Oxford Handbook Online
1
Wiley Online Books
1