Walker, G. (1990). Industrial heat exchangers: : a basic guide (2nd ed.). Hemisphere Pub. Corp.
Dyfyniad Arddull ChicagoWalker, G. Industrial Heat Exchangers: : A Basic Guide. 2nd ed. New York: Hemisphere Pub. Corp, 1990.
Dyfyniad MLAWalker, G. Industrial Heat Exchangers: : A Basic Guide. 2nd ed. Hemisphere Pub. Corp, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.