Collection
Directory of Open Access Books
140
ACS Symposium Series
24
O'Reilly
10
Cambridge Books Online
8
ACS Advances in Chemistry
6
Elsevier ScienceDirect eBooks
4
Elsevier eBook collection Mathematics
4
Making of the Modern World
2
DeGruyter MPG Collection
1
Henry Stewart Talks
1
MIT Press eBook Archive
1
Oxford University Press
1