000 00284nam a2200121Ia 4500
008 220201s1980 xx 000 0 eng d
100 _aBarnes, Ralph M
245 0 _aMotion & time study
250 _a7
260 _bNewyork : John wiley & Sons
_c1980
300 _a689
942 _2ddc
999 _c85044
_d85044