000			00408nam a2200145Ia 4500
005			20260205102802.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a621.38 T191P
100			_aTaub,Herbert
245		0	_aPrinciples of Communication system
260			_aNew Delhi _bTata McGraw Hill pub. _c1990
300			_a759p.
690			_aTelecommunication System ;Communication System
942			_cBK
999			_c252765 _d252765