APA (7th ed.) Zitazioa

Piaget Jean. (1967). Six Psychological studies (ed.). Vintage Books.

Chicago Style (17th ed.) Zitazioa

Piaget Jean. Six Psychological Studies. ed. New York: Vintage Books, 1967.

MLA (9th ed.) Zitazioa

Piaget Jean. Six Psychological Studies. ed. Vintage Books, 1967.