Telephony [electronic resource].
Material type:![Continuing resource](/opac-tmpl/lib/famfamfam/SE.png)
- 2161-8690
- One issue per month has title: Global telephony 1990-1993?
- Telephony (Online)
- TK1 .T36
No physical items for this record
Vol. numbering irregular: v. 20-58 omitted in numbering.
Has numerous supplements with distinctive titles, some bound with and some separately published from each issue, and some receiving separate cataloging.
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