Cross, M. (2007). Security+ study guide & DVD training system (2nd ed.). Burlington, MA: Syngress Pub..
शिकागो स्टाइल उद्धरणCross, Michael. Security+ Study Guide & DVD Training System. 2nd ed. Burlington, MA: Syngress Pub., 2007.
एमएलए उद्धरणCross, Michael. Security+ Study Guide & DVD Training System. 2nd ed. Burlington, MA: Syngress Pub., 2007.
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