000			00368nam a2200169Ia 4500
008			190201s9999 xx 000 0 und d
020			_a8185273022
082			_a624
082			_b1042 D
100			_aDutta S
245		0	_aEstimating And Costing
250			_aTwenty-Second
260			_aLucknow
260			_bS Dutta and Co.
260			_c1990
300			_a906
999			_c31724 _d31724