Locklin, D. P. (1972). Economics of transportation (7th ed.). R.D. Irwin.
Citación estilo ChicagoLocklin, D. Philip. Economics of Transportation. 7th ed. Homewood, Ill.: R.D. Irwin, 1972.
Cita MLALocklin, D. Philip. Economics of Transportation. 7th ed. R.D. Irwin, 1972.
Warning: These citations may not always be 100% accurate.