Gaya APA
Blank, L., Tarquin, A.
(2002).
Engineering Economy
(
Edisi 5)
.
America:
The McGraw-Hill Companies, Inc..
Gaya MLA
Blank, Leland., Tarquin, Anthony.
"Engineering Economy".
Edisi 5
America:
The McGraw-Hill Companies, Inc.,
2002.
Text.