000			00351nam a2200133Ia 4500
005			20260413100808.0
008			230516s9999||||xx |||||||||||||| ||und||
100			_aDutta B.N
245		0	_aEstimating costing in civil engg theory & practical
260			_bUBS publication N Delhi _c2012
300			_a904
942			_cGB
999			_c4636 _d4636