000 00325nam a2200109Ia 4500
008 231107s1990 xx 000 0 und d
041 _aeng
082 _a692.5
100 _aDatta,B.N.
245 _aEstimating & Costing in Civil Engineering: Theory & Practice
260 _aNew Delhi
_bUBS Publishers Distributers Pvt.Ltd
_c1990
999 _c922024
_d922024