Brennan, A. (1995). The ethics of the environment. Dartmouth.
Chicago Style (17. basım) AtıfBrennan, Andrew. The Ethics of the Environment. Aldershot, Hants, England ; Brookfield, Vt.: Dartmouth, 1995.
MLA (9th ed.) AtıfBrennan, Andrew. The Ethics of the Environment. Dartmouth, 1995.
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