000			00475nam a2200169Ia 4500
999			_c15130 _d15130
005			20210519102709.0
008			171212s9999||||xx |||||||||||||| ||und||
020			_a0029463009
041			_aeng
082			_a621.382 G3584p
100			_aGibson, Jerry D.
245			_aPrinciples of digital and analog communications _cJerry D. Gibson
260			_aSingapore _bMacmillan Publishing Company _c1990
300			_axv, 521p.
650			_aDigital communication
942			_cDB