Cita APA

Illingworth, R. S. (1988). The development of the Infant and young child: Normal and abnormal (9.).

Chicago Edition Citation

Illingworth, Ronald S. The Development of the Infant and Young Child: Normal and Abnormal. 9. London, English Language Book Society, 1988.

Cita MLA

Illingworth, Ronald S. The Development of the Infant and Young Child: Normal and Abnormal. 9. 1988.