Cita APA (7th ed.)

Ripley, W. Z. (1973). Railroads: Rates and regulation. Arno Press.

Cita Chicago (17th ed.)

Ripley, William Z. Railroads: Rates and Regulation. New York: Arno Press, 1973.

Cita MLA (8th ed.)

Ripley, William Z. Railroads: Rates and Regulation. Arno Press, 1973.