Rutledge, G. N. (2010). Primary science: Teaching the tricky bits. McGraw Hill : Open University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRutledge, G. N. Primary Science: Teaching the Tricky Bits. Berkshire, England: McGraw Hill : Open University Press, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRutledge, G. N. Primary Science: Teaching the Tricky Bits. McGraw Hill : Open University Press, 2010.
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