000 00309nam a2200121Ia 4500
008 220201s1984 xx 000 0 eng d
082 _a621
_bCHA
100 _aCharaya,JS&Narang,GS
245 0 _aText book of estimating & costing mechanical
260 _bSatya parkasham
_c1984
300 _a255
942 _2ddc
999 _c83051
_d83051