Παραπομπή APA

Swale Richard. (2001). Voice over IP: Systems and solutions. London: The Institution of Electrical Engineers.

Παραπομπή Chicago Style

Swale Richard. Voice Over IP: Systems and Solutions. London: The Institution of Electrical Engineers, 2001.

Παραπομπή MLA

Swale Richard. Voice Over IP: Systems and Solutions. London: The Institution of Electrical Engineers, 2001.

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