000 00284nam a2200133Ia 4500
100 _aWalker .W.F
942 _cBK
654 _aEngg
245 _aEngineering productivity Vol.I
260 _bB.I Publications
_aBombay
_c1963
082 _a621.9
300 _a257
546 _aENGLISH
999 _c29223
_d29223