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Carta de junio 1 1867 de B. Liebert
Animal Draft in the Cotton Savannah New Context in Chad, Cameroon and the Central African Republic. I. Expansion and Role on the Farms ; La tracción animal en el nuevo contexto de...
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Animal Draft in the Cotton Savannah New Context in Chad, Cameroon and the Central African Republic. II. What are the Priorities for Research and Development? ; La tracción animal e...