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631.147 --- Agricultural systems --- -Alternative agriculture --- -631.147 Biotechnic, ecological farming (for alternative, intermediate and soft technology). Organic farming and farms --- Biotechnic, ecological farming (for alternative, intermediate and soft technology). Organic farming and farms --- Agriculture --- Agriculture, Alternative --- Alternative agricultural systems --- Alternative farming systems --- Appropriate technology --- Sustainable agriculture --- Farming systems --- Systems, Agricultural --- Systems, Farming --- Agricultural geography --- Farm management --- Case studies --- Secteur agroindustriel --- Agroindustrial sector --- glossaire --- 631.81.036 --- 338.43 <73> --- Landbouweconomie--Verenigde Staten van Amerika. VSA. USA --- Alternative Farming --- Alternative Farming. --- 338.43 <73> Landbouweconomie--Verenigde Staten van Amerika. VSA. USA --- Agriculture / Sustainable Agriculture --- farming systems --- resource management --- Regional planning --- Animal production --- Plant production --- Organic agriculture --- Évaluation --- evaluation --- research --- Economic development --- Alternative agriculture --- glossary --- USA --- 631.147 Biotechnic, ecological farming (for alternative, intermediate and soft technology). Organic farming and farms --- 338.43 --- 63 --- (73) --- $?$90/05 --- Case studies. --- Basic Sciences. Agriculture --- TECHNOLOGY & ENGINEERING --- evaluation. --- Pests --- Integrated control --- Animal pests --- Pest animals --- Vermin --- Organisms --- Biology, Economic --- Zoology, Economic --- Alternative agriculture - United States. --- Agricultural systems - United States - Case studies. --- Farming methods --- Modern production --- National research council --- Usa