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| 037 | _aTextual | ||
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_a511.07, MAR _qFEDL |
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_aMarks John L _9761108 |
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| 245 | 0 | _aTeaching arithmetic for understanding | |
| 260 |
_aNew York, USA _bMcGraw-Hill Book Company _c1958 |
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| 300 | _axiv,429p. | ||
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_a Purdy C Richard Kinney Lucien B _9761109 |
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_cTEXL _h511.07, MAR |
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