MLA
An African American Man in a Suit and Hat Sitting in a Chair Outside, with a Plant behind Him. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/552w3r22bc-cor.
APA, 6th edition
An African American man in a suit and hat sitting in a chair outside, with a plant behind him (Box 72). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/552w3r22bc-cor.
Chicago
“An African American Man in a Suit and Hat Sitting in a Chair Outside, with a Plant behind Him.” 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/552w3r22bc-cor.