Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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