000 00286nam a2200121Ia 4500
008 220201s1963 xx 000 0 eng d
082 _a624.1042
_bDUT
100 _aDutta, BN
245 0 _aEstimating & costing in civil engg
260 _bBN Dutta
_c1963
300 _a584
942 _2ddc
999 _c72598
_d72598