MLA
A Young African American Man Sitting in a Chair Outside with One Leg Crossed over the Other. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/2902z34tpn-cor.
APA, 6th edition
A young African American man sitting in a chair outside with one leg crossed over the other (Box 72). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2902z34tpn-cor.
Chicago
“A Young African American Man Sitting in a Chair Outside with One Leg Crossed over the Other.” 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/2902z34tpn-cor.