Black, U. D. (1987). Data communications and distributed networks (2nd ed.). New Jersey: Prentice-Hall.
Παραπομπή Chicago StyleBlack, Uyless D. Data Communications and Distributed Networks. 2nd ed. New Jersey: Prentice-Hall, 1987.
Παραπομπή MLABlack, Uyless D. Data Communications and Distributed Networks. 2nd ed. New Jersey: Prentice-Hall, 1987.
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