Cita APA (7a ed.)

Boyles, T. (2010). CCNA Security study guide: IINS Exam 640-553 (1st edition.). Wiley.

Cita Chicago Style (17a ed.)

Boyles, Tim. CCNA Security Study Guide: IINS Exam 640-553. 1st edition. Indianapolis: Wiley, 2010.

Cita MLA (9a ed.)

Boyles, Tim. CCNA Security Study Guide: IINS Exam 640-553. 1st edition. Wiley, 2010.