Barrett, J. (2007). Test your numerical aptitude: How to assess your numeracy skills and plan your career. Kogan Page.
芝加哥风格引文Barrett, Jim. Test Your Numerical Aptitude: How to Assess Your Numeracy Skills and Plan Your Career. London: Kogan Page, 2007.
MLA引文Barrett, Jim. Test Your Numerical Aptitude: How to Assess Your Numeracy Skills and Plan Your Career. Kogan Page, 2007.
警告：这些引文格式不一定是100％准确.