Johnson, A. (2007). Switching basics and intermediate routing: CCNA 3 labs and study guide. Cisco Press.
芝加哥风格引文Johnson, Allan. Switching Basics and Intermediate Routing: CCNA 3 Labs and Study Guide. Indianapolis: Cisco Press, 2007.
MLA引文Johnson, Allan. Switching Basics and Intermediate Routing: CCNA 3 Labs and Study Guide. Cisco Press, 2007.
警告：这些引文格式不一定是100％准确.