000 00297nam a2200121Ia 4500
020 _a0471059056
100 _aRalph M Barnes
245 _aMotion and Time Study: Design and Measurement of Work
250 _a7
260 _c1980
_bJOHN WILEY AND SONS
_aNew York
300 _axi+689
942 _cBK
999 _c28280
_d28280