000			00315nam a2200133Ia 4500
005			20260205050935.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a620.1 C459E
100			_aCHOWDHURI N
245		0	_aENGINEERING MATERIALS
260			_aCALCUTTA _bTECHNICAL _c1965
300			_a267P.
942			_cBK
999			_c88248 _d88248