Não informado. (1947). Canadian Geophysical Bulletin. National Research Council of Canada.
Lua i Stíl Chicago (17ú heag.)Não informado. Canadian Geophysical Bulletin. Ottawa: National Research Council of Canada, 1947.
Lua MLA (8ú heag.)Não informado. Canadian Geophysical Bulletin. National Research Council of Canada, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.