MLA
Wash, Robin. Fraternities and Sororities, Greek Week - Students in Cow Costume Performing a Skit. 1973. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 17, Folder 3. https://digital.library.emory.edu/purl/85370rxx6p-cor.
APA, 6th edition
Wash, R. (1973). Fraternities and sororities, Greek Week - Students in cow costume performing a skit (Box 17, Folder 3) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/85370rxx6p-cor.
Chicago
Wash, Robin. “Fraternities and Sororities, Greek Week - Students in Cow Costume Performing a Skit.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 1, 1973. Box 17, Folder 3. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/85370rxx6p-cor.