000			00520nam a22002057a 4500
003			OSt
005			20250306125635.0
007			ta
008			250306b |||||||| |||| 00| 0 eng d
020			_a81-85273-02-2
040			_aGCET
041			_aeng
082			_a624.0681 _bDUT
100			_aDutta, B. N.
245			_aEstimating and costing in civil engineering: _bTheory and practice / _cB. N.Dutta
250			_a23th
260			_aLucknow _bS. Dutta and Company _c1991
300			_axi, 906p.
942			_2ddc _cDONATED
999			_c9908 _d9908