00418nam 2275710 450000100060000000300230000600500090002900800410003808200080007907200230008702000180011010000210012826000210014924500470017065000230021765000100024075710StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a621 atelecommunications a81-7224-344-8 aWilliam Mitchell bPUBLISHER c1995 aTelecommunications System and Applications atelecommunications atitle