Não informado. (1963). International Journal of Engineering Science. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Engineering Science. Elmsford, NY: Pergamon Press, 1963.
Lua MLA (8ú heag.)Não informado. International Journal of Engineering Science. Pergamon Press, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.