Campbell, P. (2003). Security+ guide to network security fundamentals [ada CD]Paul Campbell, Ben Calvert, Steven Boswell. Thomson Learning.
Dyfyniad Arddull ChicagoCampbell, Paul. Security+ Guide to Network Security Fundamentals [ada CD]Paul Campbell, Ben Calvert, Steven Boswell. Thomson Learning, 2003.
Dyfyniad MLACampbell, Paul. Security+ Guide to Network Security Fundamentals [ada CD]Paul Campbell, Ben Calvert, Steven Boswell. Thomson Learning, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.