Dyfyniad APA

Thuesen, G. J., & Fabrycky, W. J. (2002). Engineering economy (9th ed.). Prentice-Hall of India.

Dyfyniad Arddull Chicago

Thuesen, Gerald J., and W. J. Fabrycky. Engineering Economy. 9th ed. New Delhi: Prentice-Hall of India, 2002.

Dyfyniad MLA

Thuesen, Gerald J., and W. J. Fabrycky. Engineering Economy. 9th ed. Prentice-Hall of India, 2002.

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