Text ( visual ) : unmediated Transmission systems for communications / by members of the technical staff, Bell Telephone Laboratories. -- Rev. 3rd ed. -- [New York] : Bell Telephone Laboratories , 1964. -- ix, 784 p. : ill. ; 24 cm. -- Description based on 2nd printing (1965) ; Includes bibliographies. -- (BA26739459) ; https://ci.nii.ac.jp/ncid/BA26739459 Author Heading(s): Bell Telephone Laboratories, Inc.. -- Classification(s): LCC : TK6175. -- Subject Heading(s): LCSH : Telephone ; LCSH : Television -- Transmitters and transmission ; LCSH : Telecommunication systems

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