正題名/作者 : Integrated broadband networks :/ edited by Martin C.J. Elton.
其他題名 : the public policy issues /
其他作者 : Elton, M. C. J.
出版者 : Amsterdam ;North Holland,1991.
面頁冊數 : xii, 360 p. :ill. ;25 cm.
標題 : Telephone companies - United States. -
ISBN : 0444890688
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