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_a512, POS _qFEDL |
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_aPosamentier Alfred S _9452396 |
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| 245 | 0 | _aChallenging problems in algebra 2 | |
| 260 |
_aLondon, UK _bCollier-Macmillan Limited _c1970 |
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| 300 | _a154p. | ||
| 490 | _aMacmillan Mathematics Supplements | ||
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