Cita APA (7th ed.)

Newnan, D. G. (1991). Engineering economic analysis (4th ed.). Engineering Press.

Cita Chicago (17th ed.)

Newnan, Donald G. Engineering Economic Analysis. 4th ed. San Jose, CA: Engineering Press, 1991.

Cita MLA (9th ed.)

Newnan, Donald G. Engineering Economic Analysis. 4th ed. Engineering Press, 1991.