Anderson, A.E. Augmentative communication and autism: A comparison of sign language and the Picture Exchange Communication System. Doctoral dissertation, University of California at Santa Barbara, 2001. Dissertation Abstracts International: Section B: The Sciences and Engineering, 62, 4269.

Bryson, S. Brief report: Epidemiology of autism. Journal of Autism and Developmental Disorders, 26, 165–167.

Dawson, G., & Osterling, J. Early intervention in autism. In M. J. Guralnick (Ed.), The effectiveness of early intervention (pp. 307–326). Baltimore, MD: Paul H. Brookes Publishing

Ghaziuddin, M., & Gerstein, L. Pedantic speaking style differentiates Asperger syndrome from highfunctioning autism. Journal of Autism and Developmental Disorders, 26, 585–595

Howlin, P., Goode, S., Hutton, J., & Rutter, M. Adult outcomes for children with autism. Journal of Child Psychology and Psychiatry, 45, 212–229

Kurita, H. Infantile autism with speech loss before the age of 30 months. Journal of the American Academy of Child Psychiatry, 24, 191–196

Lord, C. Follow-up of two-year olds referred for possible autism. Journal of Child Psychology and Psychiatry, 36, 1365–1382

Mirenda, P. Toward functional augmentative and alternative communication for students with autism: Manual signs, graphic symbols, and voice output communication aids. Language, Speech, and Hearing Services in Schools, 34, 203– 216