Cornwell, P. Point of origin. Warner Books.
Lua i Stíl Chicago (17ú heag.)Cornwell, Patricia. Point of Origin. London: Warner Books.
Lua MLA (8ú heag.)Cornwell, Patricia. Point of Origin. Warner Books.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.