000 00261nam a2200109Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aDUTTA (BN)
245 0 _aESTIMATING & COSTING IN CIVIL ENGG.
250 _a26TH
260 _bN.DELHI,UBS PUB.
942 _2ddc
999 _c99331
_d99331