Gaya APA
Blank, L., Tarquin, A.
().
Engineering Economy Edisi 5
(
Edisi 5)
.
:
Mc Graw Hill.
Gaya MLA
Blank, Leland., Tarquin, Anthony.
"Engineering Economy Edisi 5".
Edisi 5
:
Mc Graw Hill,
.
Text.