APA citiranje

Stewart. CCNA Security Exam Cram (Exam IINS 640-553) (1.). Pearson India.

Chicago Style (17th ed.) Citation

Stewart. CCNA Security Exam Cram (Exam IINS 640-553). 1. Pearson India.

MLA citiranje

Stewart. CCNA Security Exam Cram (Exam IINS 640-553). 1. Pearson India.