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Dyfyniad Arddull ChicagoSimpson, Richard L. Autism Spectrum Disorders: Interventions and Treatments for Children and Youth. New Delhi: Sage, 2008.
Dyfyniad MLASimpson, Richard L. Autism Spectrum Disorders: Interventions and Treatments for Children and Youth. Sage, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.