000 00269nam a2200109Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aDATTA (BN)
245 0 _aESTIMATING & COSTING IN CIVIL ENGG.
250 _a26TH
260 _bN.DELHI,UBS PUB. & DIST.
942 _2ddc
999 _c99251
_d99251