AAIDD. (2010). Intellectual disability: Definition, classification and system of supports. aaidd American Association on Intellectual and Developmental Disabilities.
Chicago-viite (17. p.)AAIDD. Intellectual Disability: Definition, Classification and System of Supports. aaidd American Association on Intellectual and Developmental Disabilities, 2010.
MLA-viite (8. p.)AAIDD. Intellectual Disability: Definition, Classification and System of Supports. aaidd American Association on Intellectual and Developmental Disabilities, 2010.
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