MLA
Services, Emory University Photographic. Performing Arts: Theatre, Unidentified Groups - John Chappell. 1950. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 24, Folder 4. https://digital.library.emory.edu/purl/706g1jwtrp-cor.
APA, 6th edition
Services, E. U. P. (1950). Performing arts: Theatre, unidentified groups - John Chappell (Box 24, Folder 4) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwtrp-cor.
Chicago
Services, Emory University Photographic. “Performing Arts: Theatre, Unidentified Groups - John Chappell.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 2 , 1950. Box 24, Folder 4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwtrp-cor.