000 00283nam a2200121Ia 4500
008 220201s1971 xx 000 0 eng d
082 _a624.1042
_bDUT
100 _aDutta, BN
245 0 _aEstimating & costing in civil engineering
260 _c1971
300 _a880
942 _2ddc
999 _c76220
_d76220