MLA

Goulding, William R. Overland Journey of the Knickerbocker Exploring Company of the City of New York : from Fort Smith to California / 1849-1865. 0AD. https://collections.library.yale.edu/catalog/16574169.

APA, 6th edition

Goulding, W. R. (0 C.E.). Overland journey of the Knickerbocker Exploring Company of the City of New York : from Fort Smith to California / 1849-1865 [Account books United States, Memoirs United States, Overland journeys to the Pacific]. https://collections.library.yale.edu/catalog/16574169.