APA Style

Thermos, Peter, Takanen, Ari. (2007). Securing VoIP networks: threats, vulnerabilities, and countermeasures (--). New Jersey: Addison-Wesley.

Chicago Style

Thermos, Peter, Takanen, Ari. Securing VoIP networks: threats, vulnerabilities, and countermeasures. -- New Jersey: Addison-Wesley, 2007. Text.

MLA Style

Thermos, Peter, Takanen, Ari. Securing VoIP networks: threats, vulnerabilities, and countermeasures. -- New Jersey: Addison-Wesley, 2007. Text.

Turabian Style

Thermos, Peter, Takanen, Ari. Securing VoIP networks: threats, vulnerabilities, and countermeasures. -- New Jersey: Addison-Wesley, 2007. Print.