MLA
Two African American Men in Suits and Hats, One Sitting on a Bench and the Other Has His Foot Propped on It. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 65. https://digital.library.emory.edu/purl/037hqbzkk8-cor.
APA, 6th edition
Two African American men in suits and hats, one sitting on a bench and the other has his foot propped on it (Box 65). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/037hqbzkk8-cor.
Chicago
“Two African American Men in Suits and Hats, One Sitting on a Bench and the Other Has His Foot Propped on It.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 65. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/037hqbzkk8-cor.