MLA

Northwest Boundary Commission ($d (1857-1862)). "Camp of the American Northwest Boundary Commission, Semiahmoo." Photographic print, 22.2 x 29.4 cm.. Box 5, folder 62. [1857 Aug]. https://collections.library.yale.edu/catalog/10834047.

APA, 6th edition

Northwest Boundary Commission ($d (1857-1862)). (["Box 5, folder 62"])([1857 Aug])["Camp of the American Northwest Boundary Commission, Semiahmoo." Photographic print, 22.2 x 29.4 cm.]. https://collections.library.yale.edu/catalog/10834047.