APA (7th ed.) Citation

Martin, G., & Martin, M. (1972). Trail dust: A quick picture history of the Santa Fe Trail (6th ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Martin, Gene, and Mary Martin. Trail Dust: A Quick Picture History of the Santa Fe Trail. 6th ed. Colorado Springs, Colo. : Martin Associates: [publisher not identified], 1972.

MLA (9th ed.) Citation

Martin, Gene, and Mary Martin. Trail Dust: A Quick Picture History of the Santa Fe Trail. 6th ed. [publisher not identified], 1972.