APA (7th ed.) Citation

Rolston, H. (1988). Environmental ethics: Duties to and values in the natural world. Temple University Press.

Chicago Style (17th ed.) Citation

Rolston, Holmes. Environmental Ethics: Duties to and Values in the Natural World. Philadelphia: Temple University Press, 1988.

MLA (9th ed.) Citation

Rolston, Holmes. Environmental Ethics: Duties to and Values in the Natural World. Temple University Press, 1988.