Citazione Stile APA (7a Edizione)

Attfield, R. (1991). The ethics of environmental concern: The ethics of environmental concern (2nd ed.). University of Georgia Press.

Citazione stile Chigago Style (17a edizione)

Attfield, Robin. The Ethics of Environmental Concern: The Ethics of Environmental Concern. 2nd ed. Athens, GA: University of Georgia Press, 1991.

Citatione MLA (9a ed.)

Attfield, Robin. The Ethics of Environmental Concern: The Ethics of Environmental Concern. 2nd ed. University of Georgia Press, 1991.