Cita APA (7th ed.)
Barrett, J., & Williams, G. (1981). Test your own job aptitude: Exploring your career potential. Penguin.
Cita Chicago (17th ed.)
Barrett, James, i Geoffrey Williams. Test Your Own Job Aptitude: Exploring Your Career Potential. New York: Penguin, 1981.
Cita MLA (9th ed.)
Barrett, James, i Geoffrey Williams. Test Your Own Job Aptitude: Exploring Your Career Potential. Penguin, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.