MLA
News, and Publications Bureau. Pushball - Students Run across Field as Crowd Looks On. 1925. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 4. https://digital.library.emory.edu/purl/5805x69pvv-cor.
APA, 6th edition
N., & Bureau, P. (1925). Pushball - Students run across field as crowd looks on (Box 5, Folder 4) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5805x69pvv-cor.
Chicago
News, and Publications Bureau. “Pushball - Students Run across Field as Crowd Looks On.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1925. Box 5, Folder 4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5805x69pvv-cor.