Gaya APA
Hay, William W.. (1977).
An Introduction Transportation Engineering (Ed.2).
Canada:
John Wiley & Sons.
Gaya Chicago
Hay, William W..
An Introduction Transportation Engineering.
Ed.2
Canada:
John Wiley & Sons,
1977.
Text.
Gaya MLA
Hay, William W..
An Introduction Transportation Engineering.
Ed.2
Canada:
John Wiley & Sons,
1977.
Text.
Gaya Turabian
Hay, William W..
An Introduction Transportation Engineering.
Ed.2
Canada:
John Wiley & Sons,
1977.
Print.