Gaya APA
Officials, A, A, O, S, H, A, T. (1984).
A policy on geometric design of rural highways .
Washington, D.C.:
American Association of state Highway and Transportation Officials.
Gaya MLA
Officials, AMERICAN, Association, Of, State, Highway, And, Transportation.
"A policy on geometric design of rural highways".
Washington, D.C.:
American Association of state Highway and Transportation Officials,
1984.
Buku.