Rombouts, a. (1991). Guidebook To Pecten Skell. Crawford House.
Lua i Stíl Chicago (17ú heag.)Rombouts, a. Guidebook To Pecten Skell. Crawford House, 1991.
Lua MLA (8ú heag.)Rombouts, a. Guidebook To Pecten Skell. Crawford House, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.