Nag, P. (1999). Engineering thermo dynamics (2nd ed.). TMH.
Dyfyniad Arddull ChicagoNag, P.K. Engineering Thermo Dynamics. 2nd ed. New Delhi: TMH, 1999.
Dyfyniad MLANag, P.K. Engineering Thermo Dynamics. 2nd ed. TMH, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.