MLA
Portrait of an African American Man in a Graduation Cap and Gown Wearing Glasses. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 18. https://digital.library.emory.edu/purl/907tmpg4rh-cor.
APA, 6th edition
Portrait of an African American man in a graduation cap and gown wearing glasses (Box 18). [Color photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4rh-cor.
Chicago
“Portrait of an African American Man in a Graduation Cap and Gown Wearing Glasses.” Color photographs. Robert Langmuir African American Photograph Collection, n.d. Box 18. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/907tmpg4rh-cor.