MLA
Photos, Kaiden-Keystone. Identified Speakers and Entertainers - Isaiah Bowman, President of Johns Hopkins University. 1935. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 11. https://digital.library.emory.edu/purl/583kwh71bz-cor.
APA, 6th edition
Photos, K.-K. (1935). Identified Speakers and Entertainers - Isaiah Bowman, President of Johns Hopkins University (Box 6, Folder 11) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/583kwh71bz-cor.
Chicago
Photos, Kaiden-Keystone. “Identified Speakers and Entertainers - Isaiah Bowman, President of Johns Hopkins University.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1935. Box 6, Folder 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/583kwh71bz-cor.