MLA
Students, Groups, 1960s - Four Students Sitting on Grass. 1960. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 19, Folder 7. https://digital.library.emory.edu/purl/69673n5v64-cor.
APA, 6th edition
Students, groups, 1960s - Four students sitting on grass (Box 19, Folder 7). (1960). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/69673n5v64-cor.
Chicago
“Students, Groups, 1960s - Four Students Sitting on Grass.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 2 , 1960. Box 19, Folder 7. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/69673n5v64-cor.