Wrangel, F. P. (1842). Narrative of an expedition to the polar sea, in the years 1820, 1821, 1822, and 1823.: Commanded by Lieutenant, now Admiral Ferdinand Wrangell [i.e., Wrangel], of the Russian Imperial Navy. New-York: Harper and Brothers, Cliff-St., Place: United States; New York; New York. Retrieved from http://catalog.hathitrust.org/Record/008588806