Burton, W. (2000). Remote access for Cisco networks. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoBurton, William. Remote Access for Cisco Networks. New York: McGraw-Hill, 2000.
Dyfyniad MLABurton, William. Remote Access for Cisco Networks. New York: McGraw-Hill, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.