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Bibliographic Reference Telephone interview Library and Information Science Abstracts Telecommunications Telecommunications service Emphasis (telecommunications) Mobile radiocommunication Transmission (telecommunications) Telephone network National Roads Telecommunications Services

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Cyclopedia of Telephony and Telegraphy, Vol. 1 ;A General Reference Work on Telephony, etc. etc.

ISBN: E100000015617 出版年：2005 页码： American School of Correspondence Project Gutenberg

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