Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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