MLA

Simpson, Randolph Linsly, 1927-1992. Unknown photographer Family group: man, woman, and children stand before doorway of clapboard house. Albumen print, 3 ½ X 4 ½, mounted on card, 5-1/2 x 6-1/2. Box 16, folder 741. circa 1880. https://collections.library.yale.edu/catalog/2007430.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 16, folder 741"])(circa 1880)[Unknown photographer Family group: man, woman, and children stand before doorway of clapboard house. Albumen print, 3 ½ X 4 ½, mounted on card, 5-1/2 x 6-1/2]. https://collections.library.yale.edu/catalog/2007430.