Butch looks to you; you supervisors know safety speeds production. - [Washington, 1948] - 18 p. illus. 20 cm. - Its Bulletin, no. 97 . - Bulletin (United States. Bureau of Labor Standards) ; 97. . LCCN: l 48000051 Subjects--Topical Terms: Industrial accidents. LC Class. No.: HD7262 / .U62 1948a Dewey Class. No.: 331.823