MLA
Identified Speakers and Entertainers - Dr. Charles Pergler, Lawyer and Diplomat. 1900. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 11. https://digital.library.emory.edu/purl/559q2bvqw6-cor.
APA, 6th edition
Identified Speakers and Entertainers - Dr. Charles Pergler, lawyer and diplomat (Box 6, Folder 11). (1900). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/559q2bvqw6-cor.
Chicago
“Identified Speakers and Entertainers - Dr. Charles Pergler, Lawyer and Diplomat.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1900. Box 6, Folder 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/559q2bvqw6-cor.