000			00395nam a2200181Ia 4500
008			200428s9999||||xx |||||||||||||| ||und||
020			_c125
040			_aMAIN
041			_aEnglish
082			_a621.382 _bROD
100			_aRoddy, D.
245			_aElectronic communications
250			_a3rd ed.
260			_bPrentice Hall _c1992
300			_a788p.
650			_aELECTRONICS
942			_cGB
999			_c472 _d472