Notes on the problem of acreage of mixed food crops.
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Format: | Texto biblioteca |
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1963
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Subjects: | ST AGS AF, FOOD CROPS, FARM AREA, FARM SURVEYS, METHODS, PLANTE ALIMENTAIRE, SURFACE D'EXPLOITATION, ENQUETE SUR EXPLOITATIONS AGRICOLES, CULTIVOS ALIMENTICIOS, SUPERFICIE DE LA EXPLOTACION, ENCUESTAS SOBRE EXPLOTACIONES, METHODE, METODOS, |
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