Não informado. (2019). Occasional Notes of the Royal Astronomical Society. Royal Astronomical Society.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Occasional Notes of the Royal Astronomical Society. London: Royal Astronomical Society, 2019.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Occasional Notes of the Royal Astronomical Society. Royal Astronomical Society, 2019.
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