Kümmel, R. (2011). The second law of economics: Energy, entropy, and the origins of wealth. Springer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKümmel, Reiner. The Second Law of Economics: Energy, Entropy, and the Origins of Wealth. New York, NY: Springer, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKümmel, Reiner. The Second Law of Economics: Energy, Entropy, and the Origins of Wealth. Springer, 2011.
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