MLA
Warner, Sandi. Unidentified Speakers and Entertainers - Unidentified Man Speaking to Woman. 1950. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7, Folder 2. https://digital.library.emory.edu/purl/337vmcvf9j-cor.
APA, 6th edition
Warner, S. (1950). Unidentified Speakers and Entertainers - Unidentified man speaking to woman (Box 7, Folder 2) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/337vmcvf9j-cor.
Chicago
Warner, Sandi. “Unidentified Speakers and Entertainers - Unidentified Man Speaking to Woman.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1950. Box 7, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/337vmcvf9j-cor.