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Google圖書搜尋
Blue Book
International Telegraph and Telephone Consultative Committee. Plenary Assembly
其他書名
IXth Plenary Assembly, Melbourne, 14-25 November 1988
出版
International Telecommunication Union
, 1989
ISBN
9261037313
9789261037314
URL
http://books.google.com.hk/books?id=zmDfHrcG_SEC&hl=&source=gbs_api