APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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