Agricultural extension work -- Alabama. / https://id.loc.gov/authorities/subjects/sh85002320 https://id.loc.gov/authorities/names/n79027034-781 : Campbell, Thomas M.
Agricultural extension work -- Information technology -- India -- Congresses. / https://id.loc.gov/authorities/subjects/sh85002320 https://id.loc.gov/authorities/subjects/sh2002012003 https://id.loc.gov/authorities/names/n80125948-781 https://id.loc.gov/authorities/subjects/sh99001533 : ISEE National Seminar on Extension Innovations and Methodologies for Market-Led Agricultural Growth and Development
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Agricultural extension work -- Iran -- Case studies. / https://id.loc.gov/authorities/subjects/sh85002320 https://id.loc.gov/authorities/names/n79039880-781 https://id.loc.gov/authorities/subjects/sh99001484 : Karami, Roya.
Agricultural extension work -- Southern States. / https://id.loc.gov/authorities/subjects/sh85002320 https://id.loc.gov/authorities/subjects/sh85125633-781 : United States Commission on Civil Rights.