31. Tubes. Torsional strength of aluminum alloy tubing, Materials laboratory report [with list of references; prepared by F. B. Fuller, R. T. Schwartz, and R. B. Kaufman]. Bookmark Corporate/Agency Authors: Matériel Division, Air Corps, and War Department Publisher: Matériel Division Date: 1940 SuDoc number: W 87.11/2:8/715