William B. Wrigley and mobile unit (The Research Engineer 11/2, p. 1), April, 1956

William B. Wrigley and mobile unit (The Research Engineer 11/2, p. 1), April, 1956, VAC300-037, Box: 1, Folder: 37. The Research Engineer Photograph Collection, VAC300. Archives and Special Collections, Library, Georgia Institute of Technology. https://finding-aids.library.gatech.edu/repositories/2/archival_objects/14168 Accessed September 16, 2024.