Swale, R. (2001). Voice over IP: Systems and solutions. Institution of Engineering and Technology. https://doi.org/10.1049/PBBT003E
Citace podle Chicago (17th ed.)Swale, Richard. Voice over IP: Systems and Solutions. London, United Kingdom: Institution of Engineering and Technology, 2001. https://doi.org/10.1049/PBBT003E.
Citace podle MLA (9th ed.)Swale, Richard. Voice over IP: Systems and Solutions. Institution of Engineering and Technology, 2001. https://doi.org/10.1049/PBBT003E.
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