00297nam a2200121Ia 4500008004100000041001200041082001100053100001500064245006600079260000600145650000600151700001800157221030s9999    xx            000 0 und d  aEnglish  a105.23  aG. Kennedy 0aElectronic Communication Systemcby G. Kennedy, Bernard Davis  c0  aB  aBernard Davis