Gaya APA
ENGINEERING ECONOMY EIGHTH EDITION. (1993).
:
.
Gaya Chicago
ENGINEERING ECONOMY EIGHTH EDITION.
.
:
,
1993.
Text.
Gaya MLA
ENGINEERING ECONOMY EIGHTH EDITION.
.
:
,
1993.
Text.
Gaya Turabian
ENGINEERING ECONOMY EIGHTH EDITION.
:
,
1993.
Print.