Rifkin, J., & Howard, T. (1981). Entropy: A new world view. Bantam Books.
Lua i Stíl Chicago (17ú heag.)Rifkin, Jeremy, agus Ted Howard. Entropy: A New World View. New York: Bantam Books, 1981.
Lua MLA (9ú heag.)Rifkin, Jeremy, agus Ted Howard. Entropy: A New World View. Bantam Books, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.