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Tarifica alert.

Bibliographic Details
Format: Journal
Language:English
Published: [Potomac, Md.] : PBI Media, LLC.
Subjects:
Telecommunication > Periodicals.
Online Availability: Check for online availability
Description
Item Description:Description based on: Issue 275 (Oct. 1, 2002); title from journal contents screen (Proquest, viewed Apr. 18, 2007).
Published: Rockville, Md. : Access Intelligence, LLC <2003->
Latest issue consulted: Issue 505 (Apr. 17, 2007) (ProQuest, viewed Apr. 18, 2007).
Electronic resource.
Publication Frequency:Weekly
Format:Mode of access: World Wide Web.