Mitchell, J. W. (1983). Energy engineering. Wiley Eastern.
Dyfyniad Arddull ChicagoMitchell, John W. Energy Engineering. New York: Wiley Eastern, 1983.
Dyfyniad MLAMitchell, John W. Energy Engineering. Wiley Eastern, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.