Hull Learning Services (Great Britain). (2004). Supporting children with speech and language difficulties. D. Fulton.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hull Learning Services (Great Britain). Supporting Children with Speech and Language Difficulties. London: D. Fulton, 2004.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Hull Learning Services (Great Britain). Supporting Children with Speech and Language Difficulties. D. Fulton, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.