000 00255nam a2200121Ia 4500
100 _aRODDY, DENNIS
110 _aCOOLEN, J.
245 _aELECTRONIC COMMUNICATIONS
250 _aIII
260 _bPRENTICE HALL
_c1988
300 _a788
942 _2ddc
_cBB
999 _c73142
_d73142