A pro forma for a lake survey with respect to fisheries.
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Format: | Texto biblioteca |
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1959
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Subjects: | DATA PROCESSING, FISHERY RESOURCES, SURVEYING, LAKES, METHODS, TRAITEMENT DES DONNEES, RESSOURCE HALIEUTIQUE, RELEVE (DES DONNEES), LAC, PROCESAMIENTO DE DATOS, RECURSOS PESQUEROS, PROCEDIMIENTO DE LA ENCUESTA, LAGOS, METHODE, METODOS, |
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