MLA
Pushball - Large Group Gathers for Pushball Game. Emory University. Office of Alumni Publications., 1949. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5, Folder 4. https://digital.library.emory.edu/purl/061djh9wkh-cor.
APA, 6th edition
Pushball - Large group gathers for pushball game (Box 5, Folder 4). (1949). [Black-and-white photographs]. Emory University. Office of Alumni Publications.; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/061djh9wkh-cor.
Chicago
“Pushball - Large Group Gathers for Pushball Game.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs. Emory University. Office of Alumni Publications., 1949. Box 5, Folder 4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/061djh9wkh-cor.