000 00251nam a2200097Ia 4500
008 230508s2005 xx 000 0 und d
041 _aeng
100 _aB.N.DATTA
245 _aESTIMATING & COSTING IN CIVIL ENGG.
260 _bS.DATTA & CO.LACKHNO
_c2005
999 _c314557
_d314557