Barrett, J., & Willams, G. (2002). Test your own aptitude. Kogan Page.
Chicago Style (17th ed.) CitationBarrett, Jim, and Geoff Willams. Test Your Own Aptitude. New Delhi: Kogan Page, 2002.
MLA (8th ed.) CitationBarrett, Jim, and Geoff Willams. Test Your Own Aptitude. Kogan Page, 2002.
Warning: These citations may not always be 100% accurate.