MLA
African American Man in a Suit and Hat Sitting on a Bench, with an African American Girl in a Dress with a Bow in Her Hair Standing next to Him. 1922. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/6386hdr7vp-cor.
APA, 6th edition
African American man in a suit and hat sitting on a bench, with an African American girl in a dress with a bow in her hair standing next to him (Box 72). (1922). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6386hdr7vp-cor.
Chicago
“African American Man in a Suit and Hat Sitting on a Bench, with an African American Girl in a Dress with a Bow in Her Hair Standing next to Him.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1922. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6386hdr7vp-cor.