Content Provider
WikiBooks - Open-content textbooks
31
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
6
De Gruyter
2
JSTOR
2
UQAM - Université du Québec à Montréal: archipel
2
Arca (BC's Digital Treasures)
1
Biodiversity Heritage Library (BHL)
1
Cambridge University Press
1
DIAL@UCLouvain (Université catholique de Louvain)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Johns Hopkins University Press
1
Mid Sweden University: Publications (DiVA)
1
Oxford University Press (via Crossref)
1
PRISM - University of Calgary Digital Repository
1
The Catholic University of America: Digital Collections
1
UNBC's Digital Institutional Repository (University of Northern British Columbia)
1
University of Minnesota Press
1
University of Toronto Press (U Toronto Press)
1
University of the Highlands and Islands: Research Database of UHI
1
Unknown
1
Uppsala University: Publications (DiVA)
1
Utrecht University Repository
1
VIURRSpace (Royal Roads University and Vancouver Island University)
1