MLA
Services, Emory University Photographic. Post Office - Emory University Mail Service Vehicle. 1950. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 1. https://digital.library.emory.edu/purl/385n8pk187-cor.
APA, 6th edition
Services, E. U. P. (1950). Post Office - Emory University mail service vehicle (Box 2, Folder 1) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/385n8pk187-cor.
Chicago
Services, Emory University Photographic. “Post Office - Emory University Mail Service Vehicle.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs, 1950. Box 2, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/385n8pk187-cor.