000			00326nam a2200133Ia 4500
005			20260205054121.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a926.291 Ab3W
100			_aSingh, R. P.
245		0	_aCommunication systems
260			_aN. Delhi _bTata Mcgraw hill _c2002
300			_a592p.
942			_cBK
999			_c133090 _d133090