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1
American environmental policy, 1990-2006 beyond gridlock /
Cyhoeddwyd 2008An electronic book accessible through the World Wide Web; click to view
Electronig eLyfr -
2
The greenest nation? : a new history of German environmentalism /
Cyhoeddwyd 2014An electronic book accessible through the World Wide Web; click to view
Electronig eLyfr -
3
China's environmental foreign relations /
Cyhoeddwyd 2021Taylor & Francis
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Electronig eLyfr