000 00286nam a2200121Ia 4500
008 220201s1999 xx 000 0 eng d
082 _a624.1042
_bDUT
100 _aDutta, BN
245 0 _aEstimating & costing in civil
260 _bUBS Pub & Dis
_c1999
300 _a904
942 _2ddc
999 _c86733
_d86733