MLA

Northwest Boundary Commission ($d (1857-1862)). "Buildings of the H[udson] B[ay] Co. establishment, San Juan Island." Two photographic prints joined together to form a panorama, 11.1 x 35.7 cm.. Box 6, folder 67. [1859 Sep]. https://collections.library.yale.edu/catalog/2004422.

APA, 6th edition

Northwest Boundary Commission ($d (1857-1862)). (["Box 6, folder 67"])([1859 Sep])["Buildings of the H[udson] B[ay] Co. establishment, San Juan Island." Two photographic prints joined together to form a panorama, 11.1 x 35.7 cm.]. https://collections.library.yale.edu/catalog/2004422.