Collection
Springer eBooks 2005-
541
Springer Book Archives -2004
143
Directory of Open Access Books
54
O'Reilly
14
World Bank E-Library Archive
14
ACS Symposium Series
3
ACS Advances in Chemistry
2
Cambridge Books Online
1
Elsevier Handbooks in Economics
1
Emerald Business, Management and Economics eBook Collection Archive
1
National Center for Biotechnology Information
1
OAPEN
1