MLA
Thompson, Darrell. Telephone System - RCA Electron Tubes. Emory University. Office of Alumni Publications., 1964. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 8, Folder 4. https://digital.library.emory.edu/purl/501pg4f5dj-cor.
APA, 6th edition
Thompson, D. (1964). Telephone System - RCA electron tubes (Box 8, Folder 4) [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/501pg4f5dj-cor.
Chicago
Thompson, Darrell. “Telephone System - RCA Electron Tubes.” Black-and-white photographs. EU Office of Alumni Publications Photos Deposit Collection 1. Emory University. Office of Alumni Publications., 1964. Box 8, Folder 4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/501pg4f5dj-cor.