APA (7th ed.) Citation

Srinivasan, M. L. (2016). CISSP in 21 days: Boost your confidence and get the competitive edge you need to crack the exam in just 21 days! (Second edition.). Packt Publishing.

Chicago Style (17th ed.) Citation

Srinivasan, M. L. CISSP in 21 Days: Boost Your Confidence and Get the Competitive Edge You Need to Crack the Exam in Just 21 Days! Second edition. Birmingham, UK: Packt Publishing, 2016.

MLA (9th ed.) Citation

Srinivasan, M. L. CISSP in 21 Days: Boost Your Confidence and Get the Competitive Edge You Need to Crack the Exam in Just 21 Days! Second edition. Packt Publishing, 2016.

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