000 00305nam a2200145Ia 4500
020 _a471029556
082 _a621
082 _b38 FRE
100 _a"Freeman,Roger,L."
_9178
245 0 _aTelecommunication System
260 _aNew York
260 _bJohn Wiley
260 _c1980
300 _a"XXII,480"
999 _c26672
_d26672