Gaya APA

Pojman, L, P., Pojman, P. (2012). Environmental Ethics Readings in Theory ED-6 (ED-6). America: America : Wadwsworth Cengage Learning, 2012.

Gaya MLA

Pojman, Louis, P.., Pojman, Paul. "Environmental Ethics Readings in Theory ED-6". ED-6 America: America : Wadwsworth Cengage Learning, 2012, 2012. Text.