1. Achenbach, T. M. (1991). Manual for the Child Behavior Checklist/4-18 and 1991 Profile. Burlington: University of Vermont, Department of Psychiatry.
2. Achenbach, T. M. & Edelbrock, C. (1989). Diagnostic, taxonomic, and assessment issues. In T. H. Ollendick & M. Hersen (eds.), Handbook of child psychopathology (pp. 53-74). New York: Plenum.
3. American Psychiatric Association. (1987). Diagnostic and statistical manual of mental disorders (3rd ed., rev.).Washington, DC: Author.
4. American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author.
5. Anxiety: at the intersection of genes and experience