APA (7th ed.) Citation

Locklin, D. P. (1972). Economics of transportation (7th ed.). R.D. Irwin.

Chicago Style (17th ed.) Citation

Locklin, D. Philip. Economics of Transportation. 7th ed. Homewood, Ill.: R.D. Irwin, 1972.

MLA (8th ed.) Citation

Locklin, D. Philip. Economics of Transportation. 7th ed. R.D. Irwin, 1972.

Warning: These citations may not always be 100% accurate.