000			00364nam a2200169Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a692.5
100			_aDutta B. N.
245		0	_aEstamating and costing in civil engineering
260			_bUbspd
260			_c2013
300			_a1TO 904p.
365			_b425
650			_aCIVIL
942			_cBB
999			_c828 _d828