Cita APA

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

Citación estilo Chicago

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

Cita MLA

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