MLA

Simpson, Randolph Linsly, 1927-1992. Chas. Paxson, New York, NY Cameo profile of Rebecca; girl facing right. Stamped recto, beneath photograph, "Rebecca. A Slave Girl from New Orleans." Carte de visite. Box 11, folder 507. 1864. https://collections.library.yale.edu/catalog/2003970.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 11, folder 507"])(1864)[Chas. Paxson, New York, NY Cameo profile of Rebecca; girl facing right. Stamped recto, beneath photograph, "Rebecca. A Slave Girl from New Orleans." Carte de visite]. https://collections.library.yale.edu/catalog/2003970.