APA (7th ed.) Citation

Lockin, D. P. (1960). Economics of transportation: Fifth ed. Richard D. Irwin.

Chicago Style (17th ed.) Citation

Lockin, D Philip. Economics of Transportation: Fifth Ed. Homewood, III.: Richard D. Irwin, 1960.

MLA (9th ed.) Citation

Lockin, D Philip. Economics of Transportation: Fifth Ed. Richard D. Irwin, 1960.

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