Cita APA (7th ed.)

Locklin, D. P. (1966). Economics of transportation. R. D. Irwin.

Cita Chicago (17th ed.)

Locklin, David Philip. Economics of Transportation. Homewood, Ill.: R. D. Irwin, 1966.

Cita MLA (9th ed.)

Locklin, David Philip. Economics of Transportation. R. D. Irwin, 1966.