Não informado. (1963). Science and children. National Science Teachers Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Science and Children. Washington: National Science Teachers Association, 1963.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Science and Children. National Science Teachers Association, 1963.
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