(2003). CCNA 1 and 2: Companion Guide. Indianapolis, IN: Cisco Press.
Trích dẫn kiểu ChicagoCCNA 1 and 2: Companion Guide. Indianapolis, IN: Cisco Press, 2003.
MLA引文CCNA 1 and 2: Companion Guide. Indianapolis, IN: Cisco Press, 2003.
警告:這些引文格式不一定是100%准確.