MLA
Unidentified Speakers and Entertainers - Soldiers and Nurses in Field. 1939. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7, Folder 1. https://digital.library.emory.edu/purl/044bnzs85g-cor.
APA, 6th edition
Unidentified Speakers and Entertainers - Soldiers and nurses in field (Box 7, Folder 1). (1939). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/044bnzs85g-cor.
Chicago
“Unidentified Speakers and Entertainers - Soldiers and Nurses in Field.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1939. Box 7, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/044bnzs85g-cor.