000 00324nam a2200133Ia 4500
100 _aGerd Wallenstein
020 _a0-89006-390-7
654 _aCOMMUNICATION
942 _cBK
245 _aSetting global telecommunication standards
260 _aArtech House, Norwood
_c1990
082 _a384.0218 Wal
300 _axvi,256p
999 _c23704
_d23704