Collection
Directory of Open Access Books
77
National Center for Biotechnology Information
23
O'Reilly
9
Cambridge Books Online
5
Springer eBooks 2005-
5
JSTOR Open Access Books
4
OAPEN
4
Oxford University Press
4
ACS Symposium Series
2
Edward Elgar eBook Archive
2
Oxford Handbook Online
2
wiso-net eBooks
2
DeGruyter MPG Collection
1
Edward Elgar eBooks Collection Business & Economics
1
Emerald Business, Management and Economics eBook Collection Archive
1