MLA
Howard, Billy. Commencement, 1970s and 1980s - Student Smoking a Cigar. 1970. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 5. https://digital.library.emory.edu/purl/423612jmv6-cor.
APA, 6th edition
Howard, B. (1970). Commencement, 1970s and 1980s - Student smoking a cigar (Box 4, Folder 5) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/423612jmv6-cor.
Chicago
Howard, Billy. “Commencement, 1970s and 1980s - Student Smoking a Cigar.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1970. Box 4, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/423612jmv6-cor.