1.
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New York : Rosen YA, 2018.
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2.
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San Diego, CA : Lucent Books, c1994.
CMC Q143.P2 Y68 1994 |
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3.
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New York, Fleet Press Corp. [1968]
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4.
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Arlington, VA : National Science Teachers Association, [2019]
Q175.2 .F74945 2019 |
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5.
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New York : Scholastic Press, 2006.
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6.
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San Diego : Lucent Books, 1997.
CMC Q126.4 .H46 1997 |
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7.
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San Diego : Lucent Books, 1996.
CMC Q125 .H5584 1996 |
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