Gaya APA
Traffic highway engineering. (2009).
Stamford:
Cengage Learning.
Gaya Chicago
Traffic highway engineering.
.
Stamford:
Cengage Learning,
2009.
Buku.
Gaya MLA
Traffic highway engineering.
.
Stamford:
Cengage Learning,
2009.
Buku.
Gaya Turabian
Traffic highway engineering.
Stamford:
Cengage Learning,
2009.
Buku.