APA (7th ed.) Citation

Hersent, O., Gurle, D., & Petit, J. (2005). IP Telephony: Deploying voice-over-IP protocols. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Hersent, Olivier, David Gurle, and Jean-Pierre Petit. IP Telephony: Deploying Voice-over-IP Protocols. Chichester, England , Hoboken, NJ.: John Wiley & Sons, 2005.

MLA (8th ed.) Citation

Hersent, Olivier, et al. IP Telephony: Deploying Voice-over-IP Protocols. John Wiley & Sons, 2005.