000 00292nam a2200121Ia 4500
008 220201s1991 xx 000 0 eng d
082 _a621
_bMAN
100 _aManchanda Singh
245 0 _aMech estimating & costing
260 _bLudhiana : S.K Kataria
_c1991
300 _a162
942 _2ddc
999 _c85077
_d85077