1. American Psychiatric Association (1978), Diagnostic and Statistical Manual of Mental Disorders (DSM) III, draft version Task Force on Nomenclature and Statistics.
2. Psychiatric disorder in children with speech and language retardation;Baker;Arch. Gen. Psychiat.,1977
3. The measurement of family activities and relationships;Brown;Hum. Relat.,1966
4. Cantwell, D. P. & Baker, L. (1977), Psychiatric disorder in language retarded children (unpublished).
5. Families of autistic and dysphasic children;Cantwell;Arch. Gen. Psychiat.,1979