APA aipamena

Fair, M. L., & Williams, E. W. (1959). Economics of transportation. Harper.

Chicago Style aipamena

Fair, Marvine L., and Earnest W. Williams. Economics of Transportation. New York: Harper, 1959.

MLA aipamena

Fair, Marvine L., and Earnest W. Williams. Economics of Transportation. Harper, 1959.