MLA

Simpson, Randolph Linsly, 1927-1992. Vernon Gallery, Bridgeport, CT Cameo portrait, man with large moustache wearing spectacles. Cabinet photograph. Box 9, folder 231. circa 1890. https://collections.library.yale.edu/catalog/2002283.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 231"])(circa 1890)[Vernon Gallery, Bridgeport, CT Cameo portrait, man with large moustache wearing spectacles. Cabinet photograph]. https://collections.library.yale.edu/catalog/2002283.