Coulter, C. (2003). Penwyth curse. Jove Books.
Lua i Stíl Chicago (17ú heag.)Coulter, Catherine. Penwyth Curse. New York: Jove Books, 2003.
Lua MLA (9ú heag.)Coulter, Catherine. Penwyth Curse. Jove Books, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.