[3 drawings of Fort Bridger, Wyoming]
MLA
Tracy, Albert, 1818-1893. [3 drawings of Fort Bridger, Wyoming]. 1869 October. https://collections.library.yale.edu/catalog/16568577.
APA, 6th edition
Tracy, Albert, 1818-1893. (1869 October)[[3 drawings of Fort Bridger, Wyoming]]. https://collections.library.yale.edu/catalog/16568577.