Telephony [electronic resource].
Material type:
Continuing resourcePublication details: Chicago, U.S.A. : Chambers-McMeal Co., [1901-ISSN: - 0040-2656
- Global telephony
- TK1 .T36
- Online version of print publication.
Beginning in 1990 (?) one issue per month called: Global telephony.
Imprint varies.
Trade Publication
Volume numbering irregular: v. 20-58 omitted in numbering.
Online version of print publication.
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