APA (7th ed.) Citation

Wallingford, T. (2006). VoIP hacks. O'Reilly.

Chicago Style (17th ed.) Citation

Wallingford, Ted. VoIP Hacks. Sebastopol, CA: O'Reilly, 2006.

MLA (9th ed.) Citation

Wallingford, Ted. VoIP Hacks. O'Reilly, 2006.

Warning: These citations may not always be 100% accurate.