Some aspects of livestock surveys.
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Format: | Texto biblioteca |
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1966
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Subjects: | SAMPLING, SEASONS, LIVESTOCK, AGRICULTURAL SECTOR, SURVEYS, METHODS, AFRICA, ECHANTILLONNAGE, SAISON, BETAIL, MUESTREO, ESTACIONES DEL ANO, GANADO, SECTEUR AGRICOLE, ENQUETE, METHODE, AFRIQUE, SECTOR AGRARIO, ENCUESTAS, METODOS, |
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