MLA
Santee, C. Bruce. Arthur Harris in a Bow Tie and Hat next to a Chair. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/279v15dv65-cor.
APA, 6th edition
Santee, C. B. Arthur Harris in a bow tie and hat next to a chair (Box 73) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/279v15dv65-cor.
Chicago
Santee, C. Bruce. “Arthur Harris in a Bow Tie and Hat next to a Chair.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/279v15dv65-cor.