MLA
Dementi, A. L. Identified Speakers and Entertainers - Dr. Douglas S. Freeman, Journalist and Historian. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 12. https://digital.library.emory.edu/purl/450gtht7tc-cor.
APA, 6th edition
Dementi, A. L. (1940). Identified Speakers and Entertainers - Dr. Douglas S. Freeman, journalist and historian (Box 6, Folder 12) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/450gtht7tc-cor.
Chicago
Dementi, A. L. “Identified Speakers and Entertainers - Dr. Douglas S. Freeman, Journalist and Historian.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1940. Box 6, Folder 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/450gtht7tc-cor.