MLA
Studio., Metropolitan Art. Portrait of an African American Man Wearing a Suit and Glasses. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6. https://digital.library.emory.edu/purl/836547d82r-cor.
APA, 6th edition
Studio., M. A. Portrait of an African American man wearing a suit and glasses (Box 6) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/836547d82r-cor.
Chicago
Studio., Metropolitan Art. “Portrait of an African American Man Wearing a Suit and Glasses.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 6. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/836547d82r-cor.