Não informado. (1969). Marine Technology Society Journal. Marine Technology Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Marine Technology Society Journal. Washington: Marine Technology Society, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Marine Technology Society Journal. Marine Technology Society, 1969.
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