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1
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Agricultural extension workers -- See Also the narrower term County agricultural agents
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1
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3
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Agricultural extension workers -- Iran -- Case studies. / https://id.loc.gov/authorities/subjects/sh85002325 https://id.loc.gov/authorities/names/n79039880-781 https://id.loc.gov/authorities/subjects/sh99001484 : Karami, Roya.
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2013
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1
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