00320nam 2200965 4500001000400000003002300004005000900027008004100036082001100077100001900088260002500107250001900132245003700151965StarLibrary Marc Built20180713201711 ||||| |||||||||||amh  a537.91 ageorge kennedy bmcgraw - hall c1993 aالطبعة 4 aelectronic communication systems