United States. Army. Corps of Topographical Engineers, Gunnison, J. W., Beckwith, E. G., Kern, R. H., Egloffstein, F. W., & Siebert, S. (1855). Map no. 1 from the western boundary of Missouri to the mouth of Trap Creek from explorations and surveys. Engraved by Selmar Siebert.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Army. Corps of Topographical Engineers, J. W. Gunnison, E. G. Beckwith, Richard H. Kern, F. W. Egloffstein, और Selmar Siebert. Map No. 1 from the Western Boundary of Missouri to the Mouth of Trap Creek from Explorations and Surveys. [Washington, D.C.]: Engraved by Selmar Siebert, 1855.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States. Army. Corps of Topographical Engineers, et al. Map No. 1 from the Western Boundary of Missouri to the Mouth of Trap Creek from Explorations and Surveys. Engraved by Selmar Siebert, 1855.