Collection
Directory of Open Access Books
1,795
National Center for Biotechnology Information
259
OAPEN
257
Eighteenth Century Collections Online / ECCO
69
Making of the Modern World
52
Springer eBooks 2005-
34
Springer Book Archives -2004
18
Ethnographic Video Online Vol. 1
16
DeGruyter MPG Collection
1
Digi20
1
Nomos
1