Bartak, L. & Rutter, M. (1976) Differences between mentally retarded and normally intelligent autistic children.
Journal of Autism and Childhood Schizophrenia, 6, 109–20.
Brask, B. H. (1972) A prevalence investigation of childhood psychoses. In Nordic Symposium on the Cart of the Psychotic Children.
Oslo: Barnepsykiatrist Forening.
DeMyer, M. (1976) Motor, perceptual-motor and intellectual disabilities of autistic children.
Early Childhood Autism: Second Edition (ed. L. Wing). Oxford: Pergamon.
Eisenberg, L. & Kanner, L. (1956) Early infantile autism 1943–1955.
American Journal of Orthopsychiatry, 26, 556–66.
Finney, D. J., Latscha, R., Bennett, B. M. & Hsu, P. (1963) Tables for Testing Significance in a 2 × 2 Contingency Table.
Cambridge: University Press.
Gould, J. (1977) The use of the Vineland Social Maturity scale, the Merrill-Palmer scale of mental tests (non-verbal items) and the Reynell Developmental Language scales with children in contact with the services for severe mental retardation.
Journal of Mental Deficiency Research, 21, 213–26.
Kanner, L. (1943) Autistic disturbances of affective contact.
Nervous Child, 2, 217–50.
Kanner, L. (1954) To what extent is early childhood autism determined by constitutional inadequacies?
Proceedings of the Association for Research into Nervous and Mental Disorders, 33, 378–85.
Lotter, V. (1966) Epidemiology of autistic conditions in young children. I. Prevalence.
Social Psychiatry, 1, 124–37.
Lotter, V. (1967a) Epidemiology of autistic conditions in young children: II. Some characteristics of the parents and children.
Social Psychiatry, 1, 163–73.
Lotter, V. (1967b)
The Prevalence of the Autistic Syndrome in Children.
Ph.D. Thesis, University of London.
Lotter, V. (1974) Factors related to outcome in autistic children.
Journal of Autism and Childhood Schizophrenia, 4, 263–77.
Office of Population Censuses & Surveys (1970) Classification of Occupations.
London: Her Majesty's Stationery Office.
Rutter, M., Lebovici, S., Eisenberg, L., Sneznevsky, A. V., Sadoun, R., Brooke, E. & Tsuno-Yi Lin, (1969) A tri-axial classification of mental disorders in childhood: an international study.
Journal of Child Psychology and Psychiatry, 10, 41–61.
Schopler, E., Andrews, C. E. & Strupp, K. (1979) Do autistic children come from upper-middle-class parents?
Journal of Autism and Developmental Disorders, 9, 139–52.
Wing, L. (1970) Observations on the psychiatric section of the International Classification of Diseases and the British Glossary of Mental Disorders, Psychological Medicine, 1, 79–85.
Wing, L. & Gould, J. (1979) Severe impairments of social interaction and associated abnormalities in children: epidemiology and classification.
Journal of Autism and Developmental Disorders, 9, 11–29.
Wing, L., Yeates, S. R., Brierley, L. M. & Gould, J. (1976) The prevalence of early childhood autism: comparison of administrative and epidemiological studies.
Psychological Medicine, 6, 89–100.