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100 | 1 | _aJohnston, C.L. (Carol Lee), 1911– | |
245 | 1 | 0 |
_aDevelopmental mathematics _cC.L. Johnston C.L., Alden T. Willis, Gale M. Hughes. |
260 |
_aBelmont, Calif. _bWadsworth _cc1987 |
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_aix, 533p.:;ill. _c28cm |
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