MLA
Students, Groups, 1940s-1950s - Students on Lawn. 1939. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 18, Folder 4. https://digital.library.emory.edu/purl/627zkh193w-cor.
APA, 6th edition
Students, groups, 1940s-1950s - Students on lawn (Box 18, Folder 4). (1939). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/627zkh193w-cor.
Chicago
“Students, Groups, 1940s-1950s - Students on Lawn.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 2 , 1939. Box 18, Folder 4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/627zkh193w-cor.