Gaya APA
BLANK, Leland. (2005).
ENGINEERING ECONOMY SIXTH EDITION (6).
NEW YORK:
McGRAW HILL.
Gaya Chicago
BLANK, Leland.
ENGINEERING ECONOMY SIXTH EDITION.
6
NEW YORK:
McGRAW HILL,
2005.
Text.
Gaya MLA
BLANK, Leland.
ENGINEERING ECONOMY SIXTH EDITION.
6
NEW YORK:
McGRAW HILL,
2005.
Text.
Gaya Turabian
BLANK, Leland.
ENGINEERING ECONOMY SIXTH EDITION.
6
NEW YORK:
McGRAW HILL,
2005.
Print.