MLA
Commencement, Pre-1940 - Graduation Procession across Bridge. 1936. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 1. https://digital.library.emory.edu/purl/187pnvx15x-cor.
APA, 6th edition
Commencement, pre-1940 - Graduation procession across bridge (Box 4, Folder 1). (1936). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/187pnvx15x-cor.
Chicago
“Commencement, Pre-1940 - Graduation Procession across Bridge.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1936. Box 4, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/187pnvx15x-cor.