APA (7th ed.) Citation

Max, H., & Ray, T. (2006). Skype: The definitive guide. Addison Wesley Professional.

Chicago Style (17th ed.) Citation

Max, Harry, and Taylor Ray. Skype: The Definitive Guide. [Place of publication not identified]: Addison Wesley Professional, 2006.

MLA (8th ed.) Citation

Max, Harry, and Taylor Ray. Skype: The Definitive Guide. Addison Wesley Professional, 2006.

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