MLA
Services, Emory University Photographic. Library Special Collections - Group Portrait of Joel Chandler Harris's Family. 1920. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 10, Folder 12. https://digital.library.emory.edu/purl/187pnvx18d-cor.
APA, 6th edition
Services, E. U. P. (1920). Library Special Collections - Group portrait of Joel Chandler Harris's family (Box 10, Folder 12) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/187pnvx18d-cor.
Chicago
Services, Emory University Photographic. “Library Special Collections - Group Portrait of Joel Chandler Harris's Family.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 1, 1920. Box 10, Folder 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/187pnvx18d-cor.