Kümmel, R. (2011). The second law of economics: Energy, entropy, and the origins of wealth. Springer.
Lua i Stíl Chicago (17ú heag.)Kümmel, Reiner. The Second Law of Economics: Energy, Entropy, and the Origins of Wealth. New York, NY: Springer, 2011.
Lua MLA (9ú heag.)Kümmel, Reiner. The Second Law of Economics: Energy, Entropy, and the Origins of Wealth. Springer, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.