Cita APA (7a ed.)

Westmeyer, R. E. (1952). Economics of transportation (4th ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Westmeyer, Russell E. Economics of Transportation. 4th ed. New York: Prentice-Hall, 1952.

Cita MLA (9a ed.)

Westmeyer, Russell E. Economics of Transportation. 4th ed. Prentice-Hall, 1952.