Chertow, M. R., & Esty, D. C. (1997). Thinking ecologically: The next generation of environmental policy. Yale University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChertow, Marian R., और Daniel C. Esty. Thinking Ecologically: The Next Generation of Environmental Policy. New Haven: Yale University Press, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रChertow, Marian R., और Daniel C. Esty. Thinking Ecologically: The Next Generation of Environmental Policy. Yale University Press, 1997.
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