MLA
Students, Individuals - Unidentified Male Student. 1920. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15, Folder 6. https://digital.library.emory.edu/purl/3483j9kdvw-cor.
APA, 6th edition
Students, individuals - Unidentified male student (Box 15, Folder 6). (1920). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3483j9kdvw-cor.
Chicago
“Students, Individuals - Unidentified Male Student.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 1, 1920. Box 15, Folder 6. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3483j9kdvw-cor.