MLA
News, and Publications Bureau. Identified Speakers and Entertainers - Dr. Daniel C. Elkin and Dr. Alfred Blalock. 1946. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 12. https://digital.library.emory.edu/purl/9182jm64km-cor.
APA, 6th edition
N., & Bureau, P. (1946). Identified Speakers and Entertainers - Dr. Daniel C. Elkin and Dr. Alfred Blalock (Box 6, Folder 12) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9182jm64km-cor.
Chicago
News, and Publications Bureau. “Identified Speakers and Entertainers - Dr. Daniel C. Elkin and Dr. Alfred Blalock.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1946. Box 6, Folder 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9182jm64km-cor.