MLA

Simpson, Randolph Linsly, 1927-1992. Lloyd, Canajoharie, NY Full length double portrait of two young children in white gowns. Cabinet photograph. Box 9, folder 236. circa 1885. https://collections.library.yale.edu/catalog/2002288.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 236"])(circa 1885)[Lloyd, Canajoharie, NY Full length double portrait of two young children in white gowns. Cabinet photograph]. https://collections.library.yale.edu/catalog/2002288.