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Livestock production systems and livestock development in tropical Africa
Jahnke, Hans E. - 1982
Persistent link: https://www.econbiz.de/10000075690
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Livestock in economic development
Jahnke, Hans E. - 1979
Persistent link: https://www.econbiz.de/10003057870
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Systèmes de production animale et développement de l'élevage en Afrique tropicale
Jahnke, Hans E. - 1984
Persistent link: https://www.econbiz.de/10014005639