Cita APA (7th ed.)

Piaget, J., & Cook, M. (1963). The origins of intelligence in children. Norton.

Cita Chicago (17th ed.)

Piaget, Jean, i Margaret Cook. The Origins of Intelligence in Children. New York: Norton, 1963.

Cita MLA (9th ed.)

Piaget, Jean, i Margaret Cook. The Origins of Intelligence in Children. Norton, 1963.