Ackerman, F. (1997). Why do we recycle: Markets, values, and public policy. Island Press.
Čikaški stil citiranja (17. izdanje)Ackerman, Frank. Why Do We Recycle: Markets, Values, and Public Policy. Washington, D.C.: Island Press, 1997.
MLA način citiranja (9. izdanje)Ackerman, Frank. Why Do We Recycle: Markets, Values, and Public Policy. Island Press, 1997.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.