Não informado. (2011). Education and Training in Developmental Disabilities. Council for Exceptional Children, Division on Developmental Disabilities.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Education and Training in Developmental Disabilities. Arlington, Va: Council for Exceptional Children, Division on Developmental Disabilities, 2011.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Education and Training in Developmental Disabilities. Council for Exceptional Children, Division on Developmental Disabilities, 2011.
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