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Cradle to Cradle
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William McDonough and Michael Braungart
North Point Press, 2002
 (8)
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Earth, Inc.
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Gregory Unruh
Harvard Business Review Press, 2010
 (9)
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Enough
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Roger Thurow and Scott Kilman
Public Affairs, 2010
(8)
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Factor Five
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Ernst von Weizsäcker et al.
Earthscan, 2010
(8)
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