000 00256nam a2200097Ia 4500
008 150310s9999 xx 000 0 und d
100 _aDUTTA B N
245 _aESTIMATING AND COSTING IN CIVIL ENGINEERING
250 _a15
260 _c1978
_bS.DUTTA & CO. LUCKNOW
999 _c7388
_d7388