Williamson, R. S., Smith, I. W., Davis, J., Parke, J. G., & Siebert, S. (1853). Map of passes in the Sierra Nevada from Walker's Pass to the Coast Range: From explorations and surveys. Engraved by Selmar Siebert.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliamson, R. S., Isaac W. Smith, Jefferson Davis, John G. Parke, और Selmar Siebert. Map of Passes in the Sierra Nevada from Walker's Pass to the Coast Range: From Explorations and Surveys. [Washington, D.C.?]: Engraved by Selmar Siebert, 1853.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWilliamson, R. S., et al. Map of Passes in the Sierra Nevada from Walker's Pass to the Coast Range: From Explorations and Surveys. Engraved by Selmar Siebert, 1853.
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