MLA
News, and Publications Bureau. Commencement, Pre-1940 - Graduation Procession. 1930. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 1. https://digital.library.emory.edu/purl/726xwdbsgc-cor.
APA, 6th edition
N., & Bureau, P. (1930). Commencement, pre-1940 - Graduation procession (Box 4, Folder 1) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/726xwdbsgc-cor.
Chicago
News, and Publications Bureau. “Commencement, Pre-1940 - Graduation Procession.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1930. Box 4, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/726xwdbsgc-cor.