MLA
Sherman, Ron. Entrance Gate of Ku Klux Klan Rally in Stone Mountain, Georgia. 1971. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 16. https://digital.library.emory.edu/purl/3246q5745m-cor.
APA, 6th edition
Sherman, R. (1971). Entrance Gate of Ku Klux Klan Rally in Stone Mountain, Georgia (Box 3, Folder 16) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3246q5745m-cor.
Chicago
Sherman, Ron. “Entrance Gate of Ku Klux Klan Rally in Stone Mountain, Georgia.” Black-and-white photographs. Ron Sherman Photographs Collection, 1971. Box 3, Folder 16. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3246q5745m-cor.