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    Start Over You searched for: Publication Year 1988 Remove constraint Publication Year: 1988 Subject Term development issues Remove constraint Subject Term: development issues Subject Term sustainability Remove constraint Subject Term: sustainability

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    31. U.S. versus Third World research and extension institutions: their effect on farming systems methodology

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    32. U.S. versus Third World research and extension institutions: their effect on farming systems methodology

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    33. Vignettes of core, operational, and generic constraints in A.I.D.-funded farming systems research and extension projects

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    34. Zambia Agricultural Development Research & Extension Project

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