Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities. (1994). Education and training in mental retardation and developmental disabilities. Council for Exceptional Children, Division on Mental Retardation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities. Education and Training in Mental Retardation and Developmental Disabilities. Reston, Va: Council for Exceptional Children, Division on Mental Retardation, 1994.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities. Education and Training in Mental Retardation and Developmental Disabilities. Council for Exceptional Children, Division on Mental Retardation, 1994.