Não informado. (1950). Geophysical bulletin. Dublin Institute for Advanced Studies, School of Cosmic Physics.
Lua i Stíl Chicago (17ú heag.)Não informado. Geophysical Bulletin. Dublin: Dublin Institute for Advanced Studies, School of Cosmic Physics, 1950.
Lua MLA (8ú heag.)Não informado. Geophysical Bulletin. Dublin Institute for Advanced Studies, School of Cosmic Physics, 1950.
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