MLA
Ross, Mark. Unusual Weather on Campus - Long Exposure of Lights in Snow. 1960. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 8. https://digital.library.emory.edu/purl/245q83bkn8-cor.
APA, 6th edition
Ross, M. (1960). Unusual weather on campus - Long exposure of lights in snow (Box 3, Folder 8) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/245q83bkn8-cor.
Chicago
Ross, Mark. “Unusual Weather on Campus - Long Exposure of Lights in Snow.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1960. Box 3, Folder 8. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/245q83bkn8-cor.