Cita APA (7th ed.)

(1994). Philosophy and the natural environment. Cambridge Univ. Pr.

Cita Chicago (17th ed.)

Philosophy and the Natural Environment. New York: Cambridge Univ. Pr, 1994.

Cita MLA (9th ed.)

Philosophy and the Natural Environment. Cambridge Univ. Pr, 1994.

Atenció: Aquestes cites poden no estar 100% correctes.