Breaking the code with cryptography : analyzing patterns
Janey Levy
Rosen Classroom Books & Materials, c2006
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Keeping time through the ages : the history of tools used to measure time
Janey Levy
Rosen Classroom, c2004
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The Silk Road : using a map scale to measure distances
Janey Levy
Rosen Classroom Books & Materials, c2004
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by Janey Levy
Gareth Stevens Publishing, 2014
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