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■a0160489989 :■cCNY20.00 |
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■aGSXY |
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■aG62■24 |
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■aPerie, Marianne. |
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10 |
■aTime spent teaching core academic subjectsin elementary sc+...... |
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■aWashington, DC :■bNational Center for Education Statistics+...... |
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■a73 p. ;■c28 cm. |
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_0 |
■aElementary schools. |
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1_ |
■aBaker, David P. |
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1_ |
■aBobbitt, Sharon. |
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■aGSXY■fG62/EP511 |
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■tA■Alwq3■a20130520 09:54:08 |
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