000			00319nam a2200133Ia 4500
100			_aKennedy, george
020			_a0 07 034054 4
250			_a3rd ed.
942			_cBK
245			_aElectronic communication systems
260			_aMcgraw-hill book company, New york _c1987
082			_a621.380413 Ken
300			_axxii,
999			_c64635 _d64635