000			00439nam a2200169Ia 4500
008			250909s9999||||xx |||||||||||||| ||und||
035			_a656
082			_a621.381
100			_aFRENZEL L. E.
245		0	_aPRINCIPLES OF ELECTRONIC COMMUNICATION SYSTEMS
250			_a3RD
260			_bTATA MCGRAW HIL;L _c2008,R.P.2012
300			_aI-XIII, 1-885
500			_aSE/SI/273
650			_aELECTRONICS AND TELECOMMUNICATION
942			_cBK
999			_c18835 _d18835