Gaya APA
Vieg, Karsten. (1976).
Highway Safety Program Standards .
:
AASHTO.
Gaya Chicago
Vieg, Karsten.
Highway Safety Program Standards.
:
AASHTO,
1976.
Computer Software.
Gaya MLA
Vieg, Karsten.
Highway Safety Program Standards.
:
AASHTO,
1976.
Computer Software.
Gaya Turabian
Vieg, Karsten.
Highway Safety Program Standards.
:
AASHTO,
1976.
Computer Software.