National research council. (1996). National science education standards. National Academy press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational research council. National Science Education Standards. United States: National Academy press, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational research council. National Science Education Standards. National Academy press, 1996.
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