APA (7th ed.) Zitazioa
Duncan, J. (2010). How intelligence happens. Yale University Press.
Chicago Style (17th ed.) Zitazioa
Duncan, John. How Intelligence Happens. New Haven: Yale University Press, 2010.
MLA (9th ed.) Zitazioa
Duncan, John. How Intelligence Happens. Yale University Press, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.