Collection
JSTOR Open Access Books
13
Cambridge Books Online
6
Oxford University Press
6
O'Reilly
5
DeGruyter MPG Collection
2
Oxford Handbook Online
2
ACS Symposium Series
1
Digi20
1
Editoria Italiana Online
1
MIT Press eBook Archive
1
National Center for Biotechnology Information
1
Social Theory (Alexander Street Press)
1