Dyfyniad APA

Kasner,Erick. (1979). Essentials of engineering economics. MacGraw Hill.

Dyfyniad Arddull Chicago

Kasner,Erick. Essentials of Engineering Economics. New York: MacGraw Hill, 1979.

Dyfyniad MLA

Kasner,Erick. Essentials of Engineering Economics. MacGraw Hill, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.