MLA
African American Man Holding a Helmet and Standing next to a Bicycle, with Another Man Standing next to a Motorcycle. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/767wm37pzn-cor.
APA, 6th edition
African American man holding a helmet and standing next to a bicycle, with another man standing next to a motorcycle (Box 74). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/767wm37pzn-cor.
Chicago
“African American Man Holding a Helmet and Standing next to a Bicycle, with Another Man Standing next to a Motorcycle.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/767wm37pzn-cor.