Não informado. (1983). Geotechnical News. BiThech Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Geotechnical News. Vancouver, Canada: BiThech Publishers, 1983.
Lua MLA (8ú heag.)Não informado. Geotechnical News. BiThech Publishers, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.