MLA
Photograph, Official U. S. Navy. Military: Navy on Campus, 1940s-1950s - Crowd Gathered on Field. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 24, Folder 7. https://digital.library.emory.edu/purl/358bg79dj8-cor.
APA, 6th edition
Photograph, O. U. S. N. (1940). Military: Navy on Campus, 1940s-1950s - Crowd gathered on field (Box 24, Folder 7) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/358bg79dj8-cor.
Chicago
Photograph, Official U.S. Navy. “Military: Navy on Campus, 1940s-1950s - Crowd Gathered on Field.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 2 , 1940. Box 24, Folder 7. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/358bg79dj8-cor.