Illingworth, R. S. (1968). The Normal Child: Some Problems of the First Five Years and their Treament. London: J. and A. Churchill.
استشهاد بنمط شيكاغوIllingworth, Ronald S. The Normal Child: Some Problems of the First Five Years and Their Treament. London: J. and A. Churchill, 1968.
MLA استشهادIllingworth, Ronald S. The Normal Child: Some Problems of the First Five Years and Their Treament. London: J. and A. Churchill, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.