MLA

Guide Map to the Big Bend on the Columbia River and Other Gold Mines in British Columbia : Distances According to Official Authorities ... Published by order of the Victoria Chamber of Commerce. E. Fletcher, lith. ; 0AD. https://collections.library.yale.edu/catalog/15536281.

APA, 6th edition

Guide Map to the Big Bend on the Columbia River and other Gold Mines in British Columbia : Distances according to official authorities ... (0 C.E.). [Maps]. Published by order of the Victoria Chamber of Commerce. E. Fletcher, lith. ; https://collections.library.yale.edu/catalog/15536281.