000 00295nam a2200121Ia 4500
008 220201s1999 xx 000 0 eng d
082 _a621
_bKHA
100 _aKhanna,OP
245 0 _aT.B of Mechanical estimating & costing
260 _bDhanpat Rai & sons
_c1999
300 _a334
942 _2ddc
999 _c87613
_d87613