Não informado. (1976). Observations Magnetiques. Institut de Physique du Globe.
Lua i Stíl Chicago (17ú heag.)Não informado. Observations Magnetiques. Paris: Institut de Physique du Globe, 1976.
Lua MLA (8ú heag.)Não informado. Observations Magnetiques. Institut de Physique du Globe, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.