Morris, C. G. (1988). Psychology: An introduction (6ª ed.). Prentice Hall.
Chicago Style aipamenaMorris, Charles G. Psychology: An Introduction. 6ª ed. Prentice Hall, 1988.
MLA aipamenaMorris, Charles G. Psychology: An Introduction. 6ª ed. Prentice Hall, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.