MLA
African American Man Sitting on a Chair While Wearing a Suit and Holding a Cigarette, with an African American Woman Standing next to Him, While Wearing a Dress and Scarf, and Holding a Handbag. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/6386hdr7vn-cor.
APA, 6th edition
African American man sitting on a chair while wearing a suit and holding a cigarette, with an African American woman standing next to him, while wearing a dress and scarf, and holding a handbag (Box 72). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6386hdr7vn-cor.
Chicago
“African American Man Sitting on a Chair While Wearing a Suit and Holding a Cigarette, with an African American Woman Standing next to Him, While Wearing a Dress and Scarf, and Holding a Handbag.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6386hdr7vn-cor.