Dyfyniad APA

Thuesen, H. G. (1975). Engineering Economy (4th.). Prentice-Hall of India.

Dyfyniad Arddull Chicago

Thuesen, H G. Engineering Economy. 4th. New Delhi: Prentice-Hall of India, 1975.

Dyfyniad MLA

Thuesen, H G. Engineering Economy. 4th. Prentice-Hall of India, 1975.

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