Gaya APA
ENGINEERING ECONOMY FOURTH EDITION. (1975).
:
.
Gaya Chicago
ENGINEERING ECONOMY FOURTH EDITION.
.
:
,
1975.
Text.
Gaya MLA
ENGINEERING ECONOMY FOURTH EDITION.
.
:
,
1975.
Text.
Gaya Turabian
ENGINEERING ECONOMY FOURTH EDITION.
:
,
1975.
Print.