Friedman, T. L. (2008). Hot, flat, and crowded: Why we need a green revolution, and how it can renew America. Farrar, Straus and Giroux.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFriedman, Thomas L. Hot, Flat, and Crowded: Why We Need a Green Revolution, and How It Can Renew America. New York: Farrar, Straus and Giroux, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFriedman, Thomas L. Hot, Flat, and Crowded: Why We Need a Green Revolution, and How It Can Renew America. Farrar, Straus and Giroux, 2008.
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