MLA
African American Man Wearing an Apron, Holding Ulysses S. Grant's Uniform in Front of a Log Cabin. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/569z08kpw8-cor.
APA, 6th edition
African American man wearing an apron, holding Ulysses S. Grant's uniform in front of a log cabin (Box 70). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/569z08kpw8-cor.
Chicago
“African American Man Wearing an Apron, Holding Ulysses S. Grant's Uniform in Front of a Log Cabin.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/569z08kpw8-cor.