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SpringerLink (Online service)
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ebrary, Inc
423
Organisation for Economic Co-operation and Development
241
United Nations Environment Programme
225
ProQuest (Firm)
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Nicholas School of the Environment and Earth Sciences (Duke University)
172
Taylor & Francis
171
De Gruyter
155
Leal Filho, Walter
116
EBSCOhost
115
European Environment Agency
103
ProQuest ebook central
78
Muthu, Subramanian Senthilkannan
68
Taylor & Francis eBooks
68
Nicholas School of the Environment (Duke University)
63
Cambridge University Press
43
United Nations Economic Commission for Europe
42
Brandli, Luciana
41
National Environment Management Authority (Uganda)
41
United Nations Economic Commission for Europe. Committee on Environmental Policy
41
Project Muse
40
Azul, Anabela Marisa
37
Miller, G. Tyler (George Tyler), 1931-
36
Rosengarten Family Fund
36
World Bank
36
Alumni and Friends Memorial Book Fund
34
Bullfrog Films
34
Wall, Tony
34
Lichtfouse, Eric
32
Asian Development Bank
30
Kraft, Michael E
29
United States Environmental Protection Agency
29
World Resources Institute
28
Harris, Paul G
26
Global Environment Facility
24
Negm, Abdelazim M
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Walter de Gruyter & Co
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23
JSTOR (Online Service)
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Worldwatch Institute
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Callicott, J. Baird
22
Cunningham, William P
22
Film Ideas (Firm)
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Leonard, Liam
22
International Union for Conservation of Nature and Natural Resources
21
Linkov, Igor
21
Özuyar, Pinar Gökcin
21
United Nations Environment Programme Division of Early Warning and Assessment
21
Attfield, Robin
20
Class of 1878 Fund
20
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