Cita APA (7th ed.)

Sampson, R. J., & Farris, M. T. (1979). Domestic Transportation: Practice, Theory, and Policy (4th ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Sampson, Roy Johnson, i Martin Theodore Farris. Domestic Transportation: Practice, Theory, and Policy. 4th ed. Boston: Houghton Mifflin, 1979.

Cita MLA (9th ed.)

Sampson, Roy Johnson, i Martin Theodore Farris. Domestic Transportation: Practice, Theory, and Policy. 4th ed. Houghton Mifflin, 1979.