Não informado. (2011). Professional Psychology, Research and Practice. American Psychological Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Professional Psychology, Research and Practice. Arlington, Va: American Psychological Association, 2011.
Lua MLA (8ú heag.)Não informado. Professional Psychology, Research and Practice. American Psychological Association, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.