MLA
News, and Publications Bureau. Identified Speakers and Entertainers - Ellis Gibbs Arnall, Governor of Georgia. 1940. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 11. https://digital.library.emory.edu/purl/832r4xgz1r-cor.
APA, 6th edition
N., & Bureau, P. (1940). Identified Speakers and Entertainers - Ellis Gibbs Arnall, Governor of Georgia (Box 6, Folder 11) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/832r4xgz1r-cor.
Chicago
News, and Publications Bureau. “Identified Speakers and Entertainers - Ellis Gibbs Arnall, Governor of Georgia.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1940. Box 6, Folder 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/832r4xgz1r-cor.