MLA
Young. Attendees at the Convention Headquarters of the 27th Annual Session of the National Dental Association, August 12th-16th, in St. Louis. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 15. https://digital.library.emory.edu/purl/460qrfj6vv-cor.
APA, 6th edition
Y. Attendees at the convention headquarters of the 27th Annual Session of the National Dental Association, August 12th-16th, in St. Louis (Box 15) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/460qrfj6vv-cor.
Chicago
Young. “Attendees at the Convention Headquarters of the 27th Annual Session of the National Dental Association, August 12th-16th, in St. Louis.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 15. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/460qrfj6vv-cor.