Gaya APA
ASHFORD, Norman. (1979).
Airport engineering .
New York:
John Wiley & Sons.
Gaya Chicago
ASHFORD, Norman.
Airport engineering.
New York:
John Wiley & Sons,
1979.
Text.
Gaya MLA
ASHFORD, Norman.
Airport engineering.
New York:
John Wiley & Sons,
1979.
Text.
Gaya Turabian
ASHFORD, Norman.
Airport engineering.
New York:
John Wiley & Sons,
1979.
Print.