MLA
Identified Speakers and Entertainers - Paul Tillich, Theologian and Philosopher at Harvard University. 1955. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 11. https://digital.library.emory.edu/purl/354xgxd2s2-cor.
APA, 6th edition
Identified Speakers and Entertainers - Paul Tillich, theologian and philosopher at Harvard University (Box 6, Folder 11). (1955). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/354xgxd2s2-cor.
Chicago
“Identified Speakers and Entertainers - Paul Tillich, Theologian and Philosopher at Harvard University.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1955. Box 6, Folder 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/354xgxd2s2-cor.