MLA
News, and Publications Bureau. Post Office - View of Train. Emory University. Office of Alumni Publications., 1948. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 1. https://digital.library.emory.edu/purl/0515mkkx17-cor.
APA, 6th edition
N., & Bureau, P. (1948). Post Office - View of train (Box 2, Folder 1) [Black-and-white photographs]. Emory University. Office of Alumni Publications.; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0515mkkx17-cor.
Chicago
News, and Publications Bureau. “Post Office - View of Train.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs. Emory University. Office of Alumni Publications., 1948. Box 2, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0515mkkx17-cor.