Michael B. First; Allen Frances; Harold Alan Pincus (2004). DSM-IV-TR Guidebook. American Psychiatric Pub. p. 337. ISBN978-1-58562-068-5. Archived from the original on 25 September 2014. Retrieved 24 February 2013.
Michael B. First; Allen Frances; Harold Alan Pincus (2004). DSM-IV-TR Guidebook. American Psychiatric Pub. p. 337. ISBN978-1-58562-068-5. Archived from the original on 25 September 2014. Retrieved 24 February 2013.