000 00332nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a624:003.12 N2
100 _a"Datta, B.N."
245 _aEstimating & costing in civil Engineering
260 _a1992
_bUBS Publishers Distribution Ltd.
_cNew Delhi
300 _a904
942 _cBK
999 _c61135
_d61135