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008			220421s9999||||xx |||||||||||||| ||und||
020			_c470
040			_aET
100			_aCHAKRABARTI, P.
245		0	_aOPTICAL FIBER COMMUNICATION
260			_bMC GRAW HILL _aCHENNAI
300			_a2.23
500			_a53218
942			_cBK
999			_c59232 _d59232