Não informado. (1972). Current antarctic literature. Library of Congress, Science and Technology Division.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Current Antarctic Literature. Washington: Library of Congress, Science and Technology Division, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Current Antarctic Literature. Library of Congress, Science and Technology Division, 1972.
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