APA (7th ed.) Zitazioa

Piaget, J. (1951). The child's conception of the world. Little Adams Quality paperbacks.

Chicago Style (17th ed.) Zitazioa

Piaget, Jean. The Child's Conception of the World. Maryland: Little Adams Quality paperbacks, 1951.

MLA (9th ed.) Zitazioa

Piaget, Jean. The Child's Conception of the World. Little Adams Quality paperbacks, 1951.