Journal of farming systems research-extension. - Association of Farming Systems Research-Extension. (Tucson, Ariz., USA : Association of Farming Systems Research-Extension, 1990)
Decription based on: Vol. 5, no. 1 (1995); title from cover.
Title varies slightly.
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Keywords: Agricultural systems -- Developing countries -- Periodicals; Agricultural extension work -- Research -- Developimg countries -- Periodicals; Sustainable agriculture -- Developing countries -- Periodicals