Berg, G. (1998). Networking essentials: Exam 70-058 (2nd ed.). New Riders Pub. ; Techmedia.
Dyfyniad Arddull ChicagoBerg, Glenn. Networking Essentials: Exam 70-058. 2nd ed. Indianapolis, IN : New Delhi: New Riders Pub. ; Techmedia, 1998.
Dyfyniad MLABerg, Glenn. Networking Essentials: Exam 70-058. 2nd ed. New Riders Pub. ; Techmedia, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.