Ackerman, F. (1997). Why do we recycle: Markets, values, and public policy. Island Press.
Chicago-viite (17. p.)Ackerman, Frank. Why Do We Recycle: Markets, Values, and Public Policy. Washington, D.C.: Island Press, 1997.
MLA-viite (9. p.)Ackerman, Frank. Why Do We Recycle: Markets, Values, and Public Policy. Island Press, 1997.
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