Cite

"Hudson's Bay Co. Fort, Victoria, Vancouver Island." Photographic print, 9.5 x 12.3 cm.

MLA

Northwest Boundary Commission ($d (1857-1862)). "Hudson's Bay Co. Fort, Victoria, Vancouver Island." Photographic print, 9.5 x 12.3 cm.. Box 1, folder 4. [1857]. https://collections.library.yale.edu/catalog/10157987.

APA, 6th edition

Northwest Boundary Commission ($d (1857-1862)). (["Box 1, folder 4"])([1857])["Hudson's Bay Co. Fort, Victoria, Vancouver Island." Photographic print, 9.5 x 12.3 cm.]. https://collections.library.yale.edu/catalog/10157987.