Não informado. (1905). Proceedings of the Royal Society of London. Royal Society of London.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Proceedings of the Royal Society of London. London: Royal Society of London, 1905.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Proceedings of the Royal Society of London. Royal Society of London, 1905.
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