Baker, T. B., Penrod, S. D., & Spear, P. D. (1988). Psychology: Perspectives on behaviour.
Chicago Style aipamenaBaker, Timothy B., Steven D. Penrod, and Peter D. Spear. Psychology: Perspectives on Behaviour. New York, John Wiley & Sons, 1988.
MLA aipamenaBaker, Timothy B., et al. Psychology: Perspectives on Behaviour. 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.