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Learning the hard way: the poor environment of America's schools.
Autor principal: | |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
2002
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1240882/ https://www.ncbi.nlm.nih.gov/pubmed/12055059 |