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_aLB 1045 _bP73 |
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| 100 | _aPratt, David | ||
| 245 | 1 | 0 |
_aHow to find and measure bias in textbooks / _cDavid Pratt |
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_aEnglewood Cliffs, N.J. : _bEducational Technology, _cc1972 |
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_a50 p. : _bil. ; _c21 cm |
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| 650 | 0 | _aEducación | |
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_851 _gRonald RUIZ |
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