000			00520nam a2200181Ia 4500
008			190930s9999 xx 000 0 und d
020			_a0000017664
082			_a621.3811
100			_aAshok Raj.
245		0	_aModern Electronic Communication Theory and Systems
250			_aSecond
260			_aNew Delhi _bUmesh Publications _c1988
490			_vI
536			_aManagement
650			_aAdvaced Comm (621.3811)
650			_aCommunication Electronic Modern Modulation Signals Systems Theory
942			_cREF
999			_c7440 _d7440