APA-Zitierstil (7. Ausg.)

Illingworth, R. S. (1972). The development of the infant and young child: Normal and abnormal (5.ed.). Livingstone.

Chicago-Zitierstil (17. Ausg.)

Illingworth, Ronald S. The Development of the Infant and Young Child: Normal and Abnormal. 5.ed. Edinburgh: Livingstone, 1972.

MLA-Zitierstil (9. Ausg.)

Illingworth, Ronald S. The Development of the Infant and Young Child: Normal and Abnormal. 5.ed. Livingstone, 1972.