MLA
Commencement, Pre-1940 - Emory President Harvey Warren Cox Leads Graduation Procession. 1938. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 1. https://digital.library.emory.edu/purl/590dv41pbr-cor.
APA, 6th edition
Commencement, pre-1940 - Emory President Harvey Warren Cox leads graduation procession (Box 4, Folder 1). (1938). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/590dv41pbr-cor.
Chicago
“Commencement, Pre-1940 - Emory President Harvey Warren Cox Leads Graduation Procession.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1938. Box 4, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/590dv41pbr-cor.