Não informado. (2019). Occasional Notes of the Royal Astronomical Society. Royal Astronomical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Occasional Notes of the Royal Astronomical Society. London: Royal Astronomical Society, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Occasional Notes of the Royal Astronomical Society. Royal Astronomical Society, 2019.
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