APA aipamena

Jim Barrett & Geoff Williams. (2002). Test your own aptitude. Kogan Page.

Chicago Style aipamena

Jim Barrett and Geoff Williams. Test Your Own Aptitude. New Delhi: Kogan Page, 2002.

MLA aipamena

Jim Barrett and Geoff Williams. Test Your Own Aptitude. Kogan Page, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.