Cita APA (7a ed.)

Liu, D. (2009). Cisco CCNA/CCENT exam 640-802, 640-822, 640-816 preparation kit (1st edition.). Syngress Pub.

Cita Chicago Style (17a ed.)

Liu, Dale. Cisco CCNA/CCENT Exam 640-802, 640-822, 640-816 Preparation Kit. 1st edition. Burlington, MA: Syngress Pub, 2009.

Cita MLA (9a ed.)

Liu, Dale. Cisco CCNA/CCENT Exam 640-802, 640-822, 640-816 Preparation Kit. 1st edition. Syngress Pub, 2009.