MLA
Pushball - Group of Students underneath the Ball. 1925. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 4. https://digital.library.emory.edu/purl/590dv41pcx-cor.
APA, 6th edition
Pushball - Group of students underneath the ball (Box 5, Folder 4). (1925). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/590dv41pcx-cor.
Chicago
“Pushball - Group of Students underneath the Ball.” 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/590dv41pcx-cor.