MLA
Portrait of an African American Man in a Suit and Vest with a Mustache. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 18. https://digital.library.emory.edu/purl/27312jm6f8-cor.
APA, 6th edition
Portrait of an African American man in a suit and vest with a mustache (Box 18). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/27312jm6f8-cor.
Chicago
“Portrait of an African American Man in a Suit and Vest with a Mustache.” Card photographs (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/27312jm6f8-cor.