000 00393nam a2200133Ia 45e0
008 181001s1976 xx 000 0 und d
100 _aDutta B.N.
245 0 _aEstimation & costing in Civil Engg.
260 _aLucknow
_bDutta Publisher
_c1976
300 _a906
942 _2ddc
_cBK
999 _c2752
_d2752