APA引文

Cisco Systems. (2003). Cisco Networking Academy Program IT Essentials I: PC Hardware and Software Companion Guide (Photo). USA: Cisco Press.

Trích dẫn kiểu Chicago

Cisco Systems. Cisco Networking Academy Program IT Essentials I: PC Hardware and Software Companion Guide (Photo). USA: Cisco Press, 2003.

MLA引文

Cisco Systems. Cisco Networking Academy Program IT Essentials I: PC Hardware and Software Companion Guide (Photo). USA: Cisco Press, 2003.

警告：這些引文格式不一定是100％准確.