Cassedy, E., & Grossman, P. (1998). Introduction to energy: Resources, technology and society. Cambridge University Press.
Dyfyniad Arddull ChicagoCassedy, Edward, and Peter Grossman. Introduction to Energy: Resources, Technology and Society. New York: Cambridge University Press, 1998.
Dyfyniad MLACassedy, Edward, and Peter Grossman. Introduction to Energy: Resources, Technology and Society. Cambridge University Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.