MLA
Jimmy Carter and Hubert Humphrey - Jimmy Carter Standing in Front of an Early Picture of Himself. 1955. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 6, Folder 2. https://digital.library.emory.edu/purl/56341ns2ct-cor.
APA, 6th edition
Jimmy Carter and Hubert Humphrey - Jimmy Carter standing in front of an early picture of himself (Box 6, Folder 2). (1955). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/56341ns2ct-cor.
Chicago
“Jimmy Carter and Hubert Humphrey - Jimmy Carter Standing in Front of an Early Picture of Himself.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1955. Box 6, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/56341ns2ct-cor.