(1992). Federal Policy for Early Childhood Evaluation of Services for Children with Disabilities / Vince L. Hutchins. [microform].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Federal Policy for Early Childhood Evaluation of Services for Children with Disabilities / Vince L. Hutchins. [microform]. 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Federal Policy for Early Childhood Evaluation of Services for Children with Disabilities / Vince L. Hutchins. [microform]. 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.