MLA
Identified Speakers and Entertainers - Clement Attlee, Prime Minister to the United Kingdom, and His Wife, Violet Attlee. 1957. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 12. https://digital.library.emory.edu/purl/24298sf86x-cor.
APA, 6th edition
Identified Speakers and Entertainers - Clement Attlee, Prime Minister to the United Kingdom, and his wife, Violet Attlee (Box 6, Folder 12). (1957). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24298sf86x-cor.
Chicago
“Identified Speakers and Entertainers - Clement Attlee, Prime Minister to the United Kingdom, and His Wife, Violet Attlee.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1957. Box 6, Folder 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24298sf86x-cor.