000			00300nam a2200109Ia 4500
008			200302s9999 xx 000 0 und d
100			_aB. N. Dutta
245			_aEstimating and Costing In Civil Engineering 25 ed.
260			_bUBS Publishers Distributors Pvt. Ltd.
260			_c2002
300			_a904 P.,
999			_c1410 _d1410