MLA
Portrait of an African American Man in a Suit Wearing a Hat and Holding a Cane. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 9. https://digital.library.emory.edu/purl/3655dv41t9-cor.
APA, 6th edition
Portrait of an African American man in a suit wearing a hat and holding a cane (Box 9). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3655dv41t9-cor.
Chicago
“Portrait of an African American Man in a Suit Wearing a Hat and Holding a Cane.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 9. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3655dv41t9-cor.