MLA

of Lands, British Columbia. Dept. Northern British Columbia. British Columbia Dept. of Lands, 0AD. https://collections.library.yale.edu/catalog/15536346.

APA, 6th edition

of Lands, B. C. D. (0 C.E.). Northern British Columbia. [Maps]. British Columbia Dept. of Lands, https://collections.library.yale.edu/catalog/15536346.