Cite

Yukon Territory : south of latitude 65° / prepared and printed at the Office of the Surveyor General.

MLA

Office, Canada. Surveyor General's. Yukon Territory : South of Latitude 65° / Prepared and Printed at the Office of the Surveyor General. Office of the Surveyor General, 1936. https://collections.library.yale.edu/catalog/15536385.

APA, 6th edition

Office, C. S. G. (1936). Yukon Territory : south of latitude 65° / prepared and printed at the Office of the Surveyor General. [Maps]. Office of the Surveyor General, https://collections.library.yale.edu/catalog/15536385.