000 00291nam a2200109Ia 4500
008 230222s9999 xx 000 0 und d
100 _aKhanna O P
245 0 _aWork Study ( Time and Motion Study)
250 _a1
260 _bDhanpat Rai Publications Pvt Ltd, New Delhi
_c2013
942 _cBK
999 _c25863
_d25863