MLA
McDougald, Worth. Students, Groups, 1940s-1950s - Sigma Alpha Epsilon Winter Formal Attendees. 1947. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 18, Folder 5. https://digital.library.emory.edu/purl/201bk3jbcm-cor.
APA, 6th edition
McDougald, W. (1947). Students, groups, 1940s-1950s - Sigma Alpha Epsilon winter formal attendees (Box 18, Folder 5) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/201bk3jbcm-cor.
Chicago
McDougald, Worth. “Students, Groups, 1940s-1950s - Sigma Alpha Epsilon Winter Formal Attendees.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 2 , 1947. Box 18, Folder 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/201bk3jbcm-cor.