000 00248nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aDUTTA B N
245 0 _aESTIMATING COASTING
260 _bVIGHYAN AND TECHNIKI PRAKSHAN JAIPUR
942 _2ddc
_cBTECH
999 _c7293
_d7293