Listar Docencia por autor "Hart, R.D."
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An ecological systems conceptual framework for agricultural research and development.
Hart, R.D. (Centro Agronómico Tropical de Investigación y Enseñanza (CATIE) Iowa State Univ. (EUA), 1979)The primary purpose of this paper is to describe a general agricultural systems conceptual framework that can serve as a starting point for a multidisciplinary team. A conceptual framework is a model, and like any model, ...