Gaya APA
Thuesen, G. J. (1989).
Engineering economy .
New Jersey:
Prentice-Hall International.
Gaya Chicago
Thuesen, G. J.
Engineering economy.
New Jersey:
Prentice-Hall International,
1989.
.
Gaya MLA
Thuesen, G. J.
Engineering economy.
New Jersey:
Prentice-Hall International,
1989.
.
Gaya Turabian
Thuesen, G. J.
Engineering economy.
New Jersey:
Prentice-Hall International,
1989.
.