Não informado. (1992). Journal of Superhard Materials. Allerton Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Superhard Materials. New York: Allerton Press, 1992.
Lua MLA (8ú heag.)Não informado. Journal of Superhard Materials. Allerton Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.