MLA
Portrait of an African American Man in a Suit and Bowler Hat. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/5805x69pbv-cor.
APA, 6th edition
Portrait of an African American man in a suit and bowler hat (Box 73). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5805x69pbv-cor.
Chicago
“Portrait of an African American Man in a Suit and Bowler Hat.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5805x69pbv-cor.