00921cam a22002771 4500 l 57000054 DLC 20260227111545.0 810810s1957 dcua 000 0 eng l 57000054 (OCoLC)16760866 DLC OrPS OCoLC DLC premarc n-us--- HD8051 .A7876 no. 120 Weinberg, Edgar. A case study of a modernized petroleum refinery. Washington] U.S. Dept. of Labor, Bureau of Labor Statistics [1957] iii, 44 p. illus. 27 cm. Automation Case studies. Petroleum Refining. Petroleum industry and trade United States. Rothberg, Herman. joint author. BLS report ; no. 120. United States. Bureau of Labor Statistics. Studies of automatic technology, no. 4. 36945 36945