000			00335nam a2200133Ia 4500
008			220201s2020 xx 000 0 eng d
082			_a624.0681 DUT
100			_aDutta, BN
245		0	_aEstimating and costing in civil engineering
250			_a28th
260			_aNew Delhi _bUBSPD _c2017
300			_axiii, 904p.
942			_2ddc
999			_c30206 _d30206