000 00286nam a2200121Ia 4500
008 220201s1972 xx 000 0 eng d
082 _a624.1042
_bDUT
100 _aDutta,BN
245 0 _aEstniating and costing in civil engg
260 _bLucknow
_c1972
300 _a880
942 _2ddc
999 _c78876
_d78876