MLA
Commencement, 1940s and 1950s - Seated Male and Female Graduates. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 2. https://digital.library.emory.edu/purl/170msbccks-cor.
APA, 6th edition
Commencement, 1940s and 1950s - Seated male and female graduates (Box 4, Folder 2). (1940). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/170msbccks-cor.
Chicago
“Commencement, 1940s and 1950s - Seated Male and Female Graduates.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1940. Box 4, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/170msbccks-cor.