000			00373nam a2200169Ia 4500
008			190201s9999 xx 000 0 und d
020			_a8185273022
082			_aAL-
082			_b22
100			_aDutta B.N.
245		0	_aEstimating and Costing I
250			_aTwenty Second
260			_aLucknow
260			_bS.Dutta and Company
260			_c1959
300			_a906
999			_c13479 _d13479