MLA
Harper, Lucius. Lucius Harper, Sr. with Many Medals. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 16. https://digital.library.emory.edu/purl/672b8gtj4r-cor.
APA, 6th edition
Harper, L. Lucius Harper, Sr. with many medals (Box 16) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/672b8gtj4r-cor.
Chicago
Harper, Lucius. “Lucius Harper, Sr. with Many Medals.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 16. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/672b8gtj4r-cor.