Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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