Gaya APA
Odom, W.
(2012).
Ccent/Ccna Icnd 640-822 Official Cert Guide. Third Edition
.
USA:
Cisco Press.
Gaya MLA
Odom, Wendell.
"Ccent/Ccna Icnd 640-822 Official Cert Guide. Third Edition".
USA:
Cisco Press,
2012.
Text.