Tohutoro APA (7th ed.)
Abrahams, J. R., & Lollo, M. (2003). Centrex or PBX: The impact of IP. Artech House.
Tohutoru Kātū Chicago (17th ed.)
Abrahams, John R., me Mauro Lollo. Centrex or PBX: The Impact of IP. Boston: Artech House, 2003.
Tohutoro MLA (9th ed.)
Abrahams, John R., me Mauro Lollo. Centrex or PBX: The Impact of IP. Artech House, 2003.
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