00808cam a22002411 4500 l 61000033 DLC 20260227111546.0 850726s1961 dcu f000 0 eng c l 61000033 (OCoLC)12311361 U.S. Dept. of Labor Library NBNC DLC premarc TA158 .U6 658.312 United States Employment Service. Technical occupations in research design and development, considered as directly supporting to engineers and physical scientists. [Washington] 1961. vi, 113 p. 23 x 12 cm. "BES no. E-194." "Prepared ... in cooperation with the National Science Foundation." Technology Vocational guidance. 37051 37051