APA-referens

Barrett, J. . .. (2009). Ultimate aptitude tests: Assess your potential with aptitude, motivational and personality tests (1.). Kogan Page.

Chicago-stil citat

Barrett, Jim. Ultimate Aptitude Tests: Assess Your Potential with Aptitude, Motivational and Personality Tests. 1. London: Kogan Page, 2009.

MLA-referens

Barrett, Jim. Ultimate Aptitude Tests: Assess Your Potential with Aptitude, Motivational and Personality Tests. 1. Kogan Page, 2009.