MLA
Identified Speakers and Entertainers - J. Howell Green. 1930. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 12. https://digital.library.emory.edu/purl/7956djhbhr-cor.
APA, 6th edition
Identified Speakers and Entertainers - J. Howell Green (Box 6, Folder 12). (1930). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7956djhbhr-cor.
Chicago
“Identified Speakers and Entertainers - J. Howell Green.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1930. Box 6, Folder 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7956djhbhr-cor.