Lua APA (7ú heag.)

HERSENT OLIVIER. (2005). IP TELEPHONY: DEPLOYING VOICE OVER IP PROTOCOLS. JOHN WILEY & SONS, LTD.

Lua i Stíl Chicago (17ú heag.)

HERSENT OLIVIER. IP TELEPHONY: DEPLOYING VOICE OVER IP PROTOCOLS. CHICHESTER: JOHN WILEY & SONS, LTD, 2005.

Lua MLA (9ú heag.)

HERSENT OLIVIER. IP TELEPHONY: DEPLOYING VOICE OVER IP PROTOCOLS. JOHN WILEY & SONS, LTD, 2005.

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