MLA
Campbell, J. Hugh. Business School - Conference Attendees. 1970. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 8, Folder 1. https://digital.library.emory.edu/purl/238w9ghxr0-cor.
APA, 6th edition
Campbell, J. H. (1970). Business School - Conference attendees (Box 8, Folder 1) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/238w9ghxr0-cor.
Chicago
Campbell, J. Hugh. “Business School - Conference Attendees.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1970. Box 8, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/238w9ghxr0-cor.