Cita APA (7a ed.)

Long, B. A., & Dennis, W. J. (1951). Mail by rail: The story of the Postal Transportation Service. Simmons-Boardman.

Cita Chicago Style (17a ed.)

Long, Bryant Alden, y William Jefferson Dennis. Mail by Rail: The Story of the Postal Transportation Service. New York: Simmons-Boardman, 1951.

Cita MLA (9a ed.)

Long, Bryant Alden, y William Jefferson Dennis. Mail by Rail: The Story of the Postal Transportation Service. Simmons-Boardman, 1951.