00823cam a22002531 4500 l 52000017 DLC 20260227111543.0 960209s1951 dcuak 000 0 eng l 52000017 (OCoLC)34493074 DLC PPT OCoLC DLC premarc n-us--- TS233 .U553 United States. Bureau of Labor Statistics Case study data on productivity and factory performance, gray iron foundries, July 1951. [Washington, U.S. Govt. Print. Off., 1951] 104 p. illus., forms. 27 cm. Labor productivity United States. Foundries United States) United States. Economic Cooperation Administration Gray iron foundries. 36767 36767