Collection
National Center for Biotechnology Information
8,437
Eighteenth Century Collections Online / ECCO
6,088
Directory of Open Access Books
5,226
Springer Book Archives -2004
4,028
Springer eBooks 2005-
3,867
OECD Books and Papers
2,482
Karger eBooks Collection 1997-2013
545
Nomos
389
Making of the Modern World
224
OAPEN
203
O'Reilly
163
JSTOR Open Access Books
44
Digi20
42
Karger eBooks Collection 1997-2009
41
Wiley Online Books
23
Ethnographic Video Online Vol. 1
22
Cambridge Books Online
18
ACS Symposium Series
15
Mohr Siebeck eBooks
15
Oxford University Press
15
Editoria Italiana Online
13
Edward Elgar eBooks Collection Business & Economics
12
MIT Press eBook Archive
10
DeGruyter MPG Collection
7
Standards and Norms (Beuth)
6
Emerald Business, Management and Economics eBook Collection Archive
5
Edward Elgar eBook Archive
4
Elsevier ScienceDirect eBooks
3
Primary Sources for Slavic Studies
3
ACS Advances in Chemistry
2
Oxford Handbook Online
2
Anthropology Online
1
Elsevier eBook collection Mathematics
1
JSTOR Books
1
MIT Press Direct to Open
1
World Bank E-Library Archive
1
beck-elibrary
1