Cita APA (7a ed.)

DesJardins, J. R. (2006). Environmental ethics: An introduction to environmental philosophy (4th ed.). Wadsworth Pub. Co.

Cita Chicago Style (17a ed.)

DesJardins, Joseph R. Environmental Ethics: An Introduction to Environmental Philosophy. 4th ed. Australia: Wadsworth Pub. Co, 2006.

Cita MLA (9a ed.)

DesJardins, Joseph R. Environmental Ethics: An Introduction to Environmental Philosophy. 4th ed. Wadsworth Pub. Co, 2006.