MLA
Identified Speakers and Entertainers - John A. Sibley, Trust Co. of Georgia, Commencement Day Speaker. Emory University. Office of Alumni Publications., 1950. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 11. https://digital.library.emory.edu/purl/327mpg4fqs-cor.
APA, 6th edition
Identified Speakers and Entertainers - John A. Sibley, Trust Co. of Georgia, Commencement Day speaker (Box 6, Folder 11). (1950). [Black-and-white photographs]. Emory University. Office of Alumni Publications.; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/327mpg4fqs-cor.
Chicago
“Identified Speakers and Entertainers - John A. Sibley, Trust Co. of Georgia, Commencement Day Speaker.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs. Emory University. Office of Alumni Publications., 1950. Box 6, Folder 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/327mpg4fqs-cor.