Educational Experiments carried out over a three-year period under a UNESCO scheme : 3 rd, realskole classes with an introduction describing experiments in the gymmasium /
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| Otros Autores: | |
| Formato: | Libro |
| Lenguaje: | Spanish |
| Publicado: |
Oslo :
Norwegian National Commission for Unesco ,
[1960?]
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| Materias: |
Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
| Número de Clasificación: |
370.115 |
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| Copia | Disponible |