Collection
Directory of Open Access Books
180
Eighteenth Century Collections Online / ECCO
44
Making of the Modern World
8
OAPEN
5
Digi20
4
Cambridge Books Online
3
Oxford University Press
3
ACS Symposium Series
2
DeGruyter MPG Collection
1
Henry Stewart Talks
1
International Monetary Fund
1
JSTOR Open Access Books
1
MIT Press eBook Archive
1
Mohr Siebeck eBooks
1
O'Reilly
1
Primary Sources for Slavic Studies
1
wiso-net eBooks
1