Howard, T., & Rifkin, J. (1980). Entropy: A new world view. Viking Press.
Dyfyniad Arddull ChicagoHoward, Ted, and Jeremy Rifkin. Entropy: A New World View. New York: Viking Press, 1980.
Dyfyniad MLAHoward, Ted, and Jeremy Rifkin. Entropy: A New World View. Viking Press, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.