APA (7th ed.) Citation

Swale, R. (2001). Voice over IP: Systems and solutions. Institution of Engineering and Technology. https://doi.org/10.1049/PBBT003E

Chicago Style (17th ed.) Citation

Swale, Richard. Voice over IP: Systems and Solutions. London, United Kingdom: Institution of Engineering and Technology, 2001. https://doi.org/10.1049/PBBT003E.

MLA (9th ed.) Citation

Swale, Richard. Voice over IP: Systems and Solutions. Institution of Engineering and Technology, 2001. https://doi.org/10.1049/PBBT003E.