Cita APA (7th ed.)
Ackerman, F. (1997). Why do we recycle: Markets, values, and public policy. Island Press.
Cita Chicago (17th ed.)
Ackerman, Frank. Why Do We Recycle: Markets, Values, and Public Policy. Washington, D.C.: Island Press, 1997.
Cita MLA (9th ed.)
Ackerman, Frank. Why Do We Recycle: Markets, Values, and Public Policy. Island Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.