MLA
Pushball - Ball Tossed in the Air. 1925. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 4. https://digital.library.emory.edu/purl/24947d7x6q-cor.
APA, 6th edition
Pushball - Ball tossed in the air (Box 5, Folder 4). (1925). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24947d7x6q-cor.
Chicago
“Pushball - Ball Tossed in the Air.” 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/24947d7x6q-cor.