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_aMorgan, Geoffrey F. _912245 |
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_aLa retención del niño en la escuela / _cGeoffrey F. Morgan |
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_aAbandono escolar _910454 |
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_tEl Monitor de la Educación Común _gAño 32, no. 496 (1914), p. 11-16 _dBuenos Aires : Consejo Nacional de Educación, 1914 _07901 _912238 _o00150848 |
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_a32 _n496 _f1914 |
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| 856 | _uhttp://www.bnm.me.gov.ar/giga1/monitor/monitor/496.pdf | ||
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