Brennan, A. (1995). The ethics of the environment. Dartmouth.
Čikaški stil citiranja (17. izdanje)Brennan, Andrew. The Ethics of the Environment. Aldershot, Hants, England ; Brookfield, Vt.: Dartmouth, 1995.
MLA način citiranja (9. izdanje)Brennan, Andrew. The Ethics of the Environment. Dartmouth, 1995.
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