Black, U. D. (1997). Data communications and distributed: Networks. Prentice-Hall of India.
Dyfyniad Arddull ChicagoBlack, Uyless D. Data Communications and Distributed: Networks. New Delhi: Prentice-Hall of India, 1997.
Dyfyniad MLABlack, Uyless D. Data Communications and Distributed: Networks. Prentice-Hall of India, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.