L'education du public en matiere de nutrition.
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| Format: | Texto biblioteca |
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1951
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| Subjects: | CHILDREN, EDUCATIONAL INSTITUTIONS, TEACHING METHODS, WORKERS, HUMAN NUTRITION, RESEARCH, EDUCATION, SURVEYS, ENFANT, ETABLISSEMENT D'ENSEIGNEMENT, METHODE PEDAGOGIQUE, TRAVAILLEUR, NUTRITION HUMAINE, RECHERCHE, NINOS, INSTITUCIONES DE EDUCACION, METODOS PEDAGOGICOS, OBREROS, NUTRICION HUMANA, INVESTIGACION, EDUCACION, ENQUETE, ENCUESTAS, |
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