Description
Published:-no. 342 -June 28, 1920; v. 2-v. 131, no. 4, July 5, 1920-Apr. 1985.
Physical Description:volumes illustrations 31 cm
Publication Frequency:Monthly, May 1921-
ISSN:0028-0100
8756-5366
Related Items:Vols. for Feb. 1956-Aug. 1961 include Journal of the American Society of Safety Engineers.