00782cam a22002411 4500 l 51000175 DLC 20260227111542.0 930706s1951 dcu i 000 0 eng l 51000175 (OCoLC)28518506 DLC PPT OCoLC DLC premarc n-us--- HD8051 .A62 no. 1046 Kelly, Mary Lavina. Productivity trends in selected industries : indexes through 1950. Washington : U.S. Govt. Print. Off., [1951]. iv, 83 p. ; 26 cm. U. S. Bureau of Labor Statistics. Bulletin ; no. 1046 Labor productivity United States. Bulletin (United States. Bureau of Labor Statistics) ; 1046. 36756 36756