MLA

of Lands, British Columbia. Dept., and Forests. Bella Coola, 1924. Army Map Service, U.S. Army, 1943. https://collections.library.yale.edu/catalog/15536304.

APA, 6th edition

of Lands, B. C. D., & F. (1943). Bella Coola, 1924. [Maps]. Army Map Service, U.S. Army, https://collections.library.yale.edu/catalog/15536304.