MLA
Trackless Trolley at Emory - Engineers and Transportation Managers on Trolley Ride. Emory University. Office of Alumni Publications., 1947. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 7. https://digital.library.emory.edu/purl/52908kpsb1-cor.
APA, 6th edition
Trackless trolley at Emory - Engineers and transportation managers on trolley ride (Box 2, Folder 7). (1947). [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/52908kpsb1-cor.
Chicago
“Trackless Trolley at Emory - Engineers and Transportation Managers on Trolley Ride.” Black-and-white photographs. Emory University Office of Alumni Publications Photographs. Emory University. Office of Alumni Publications., 1947. Box 2, Folder 7. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kpsb1-cor.