1. American Psychiatric Association. (1980). Diagnostic and Statistical Manual of Mental Disorders (3rd ed.). Washington DC.
2. American Psychiatric Association. (1987). Diagnostic and Statistical Manual of Mental Disorders (3rd ed., revision). Washington DC.
3. American Psychiatric Association. (1994). Diagnostic and Statistical Manual of Mental Disorders (4th ed.). Washington DC.
4. American Psychiatric Association. (2000). Diagnostic and Statistical Manual of Mental Disorders (4th ed., text revision). Washington DC.
5. American Psychiatric Association. (2010). APA Announces Draft Diagnostic Criteria for DSM-5 New Proposed Changes Posted for Leading Manual of Mental Disorders. News Release 2010; Release No: 10–07. http://www.dsm5.org/newsroom/documents/diag%20%20criteria%20general%20final%202.05.pdf . Accessed 14 Mar 2015.