Gardner, M. L. (2010). To hell on a fast horse: Billy the Kid, Pat Garrett, and the epic chase to justice in the Old West. William Morrow.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGardner, Mark Lee. To Hell on a Fast Horse: Billy the Kid, Pat Garrett, and the Epic Chase to Justice in the Old West. New York: William Morrow, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGardner, Mark Lee. To Hell on a Fast Horse: Billy the Kid, Pat Garrett, and the Epic Chase to Justice in the Old West. William Morrow, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.