Cita APA (7th ed.)
Gudorf, C. E., & Huchingson, J. E. (2010). Boundaries: A casebook in environmental ethics (2nd ed.). Washington, D.C..
Cita Chicago (17th ed.)
Gudorf, Christine E., i James Edward Huchingson. Boundaries: A Casebook in Environmental Ethics. 2nd ed. Georgetown University Press: Washington, D.C., 2010.
Cita MLA (9th ed.)
Gudorf, Christine E., i James Edward Huchingson. Boundaries: A Casebook in Environmental Ethics. 2nd ed. Washington, D.C., 2010.
Atenció: Aquestes cites poden no estar 100% correctes.