APA (7th ed.) Citation

Illingworth, R. S. (1991). The normal child: Some problems of the early years and their treatment (Tenth edition.). Churchill Livingstone.

Chicago Style (17th ed.) Citation

Illingworth, Ronald S. The Normal Child: Some Problems of the Early Years and Their Treatment. Tenth edition. Edinburgh ; New York: Churchill Livingstone, 1991.

MLA (9th ed.) Citation

Illingworth, Ronald S. The Normal Child: Some Problems of the Early Years and Their Treatment. Tenth edition. Churchill Livingstone, 1991.