Gaya APA
Garber, N, J., Hoel, L, A.
(1988).
Traffic and Highway Engineering
(
Ed. 1)
.
U.S.A:
U.S.A.
Gaya MLA
Garber, Nicholas, J., Hoel, Lester, A.
"Traffic and Highway Engineering".
Ed. 1
U.S.A:
U.S.A,
1988.
Teknik Sipil.