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| 037 | _aTextual | ||
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_aFEDL _beng _cFEDL |
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_aeng _2eng |
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_a511.07, BAL _qFEDL |
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| 100 |
_aBallard Philip Boswood _9140114 |
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| 245 | 0 | _aTeaching the essentials of arithmetic | |
| 260 |
_aLondon, UK _bUniversity of London Press _c1928 |
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| 300 | _axxiv,260p. | ||
| 942 |
_cTEXL _h511.07, BAL |
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_c1322596 _d1322596 |
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