MLA
Amtrak. Amtrak Train Waiting at Peachtree Station. 1979. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 3. https://digital.library.emory.edu/purl/201bk3jb4j-cor.
APA, 6th edition
A. (1979). Amtrak train waiting at Peachtree Station (Box 2, Folder 3) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/201bk3jb4j-cor.
Chicago
Amtrak. “Amtrak Train Waiting at Peachtree Station.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1979. Box 2, Folder 3. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/201bk3jb4j-cor.