000 00285nam a2200121Ia 4500
008 220201s1978 xx 000 0 eng d
082 _a624.1042
_bDUT
100 _aDutta,BN
245 0 _aEstimating & Costing in Civil engg.
260 _bS,Dutta
_c1978
300 _a906
942 _2ddc
999 _c80321
_d80321