APA (7e ed.) Bronvermelding

Brennan, A. (1995). The ethics of the environment. Dartmouth.

Chicago (17e ed.) Bronvermelding

Brennan, Andrew. The Ethics of the Environment. Aldershot, Hants, England ; Brookfield, Vt.: Dartmouth, 1995.

MLA (9e ed.) Bronvermelding

Brennan, Andrew. The Ethics of the Environment. Dartmouth, 1995.