Não informado. (1989). International Journal of Micrographics & Optical Technology. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Micrographics & Optical Technology. Oxford, Inglaterra: Pergamon Press, 1989.
Lua MLA (8ú heag.)Não informado. International Journal of Micrographics & Optical Technology. Pergamon Press, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.