Cita APA (7th ed.)

Piaget, J., & Cook, M. (1952). The origins of intelligence in children. International Universities Press.

Cita Chicago (17th ed.)

Piaget, Jean, i Margaret Cook. The Origins of Intelligence in Children. New York: International Universities Press, 1952.

Cita MLA (9th ed.)

Piaget, Jean, i Margaret Cook. The Origins of Intelligence in Children. International Universities Press, 1952.