Allison, L. (1991). Ecology and utility: The philosophical dilemmas of planetary management. Fairleigh Dickinson University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAllison, Lincoln. Ecology and Utility: The Philosophical Dilemmas of Planetary Management. Rutherford [N.J.]: Fairleigh Dickinson University Press, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAllison, Lincoln. Ecology and Utility: The Philosophical Dilemmas of Planetary Management. Fairleigh Dickinson University Press, 1991.
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