Gaya APA
Economics of Transportation. (1966).
Illinois:
Richard D. Irwin, Inc..
Gaya Chicago
Economics of Transportation.
Ed.6, Cet.4.
Illinois:
Richard D. Irwin, Inc.,
1966.
.
Gaya MLA
Economics of Transportation.
Ed.6, Cet.4.
Illinois:
Richard D. Irwin, Inc.,
1966.
.
Gaya Turabian
Economics of Transportation.
Illinois:
Richard D. Irwin, Inc.,
1966.
.