APA (7th ed.) Zitazioa

Piaget, J. (1960). The child's conception of geometry. Basic books.

Chicago Style (17th ed.) Zitazioa

Piaget, Jean. The Child's Conception of Geometry. New York: Basic books, 1960.

MLA (9th ed.) Zitazioa

Piaget, Jean. The Child's Conception of Geometry. Basic books, 1960.