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Jahnke, Hans E. ,  Westley, B.S. ,  [Livestock development projects: Planning and evaluation. An overview of a course] ,  Livestock development projects: Planning and evaluation. An overview of a course

Jahnke, Hans E. ,  [The contribution of economics to ILCA's interdisciplinary research. A tentative outline] ,  The contribution of economics to ILCA's interdisciplinary research. A tentative outline