000 00281nam a2200133Ia 4500
020 _a0876923961
100 _aDennis Roddy
245 _aElectronic Communications
250 _a3rd
260 _c1986
_bPHI
_aNew Delhi
300 _axii+788
700 _aJohn Coolen
942 _cBK
999 _c10039
_d10039