Gardner, M. L. (2025). Brothers of the gun: Wyatt Earp, Doc Holliday, and a reckoning in Tombstone. Dutton.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGardner, Mark Lee. Brothers of the Gun: Wyatt Earp, Doc Holliday, and a Reckoning in Tombstone. New York: Dutton, 2025.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGardner, Mark Lee. Brothers of the Gun: Wyatt Earp, Doc Holliday, and a Reckoning in Tombstone. Dutton, 2025.
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