Não informado. Transactions of the Penzance Natural History and Antiquarian Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Transactions of the Penzance Natural History and Antiquarian Society.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Transactions of the Penzance Natural History and Antiquarian Society.
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