APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.