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Proceedings of the 1991 Southern Conservation Tillage Conference : North Little Rock, June 18-20, 1991 /
Fayetteville, Ark. : Arkansas Agricultural Experiment Station, 1991

Government Document Conference Proceeding 圖書
2
Proceedings of the 21st Annual Southern Conservation Tillage Conference for Sustainable Agriculture, North Little Rock, Arkansas, July 15-17, 1998 /
Fayettville, Ark. : Arkansas Agricultural Experiment Station, 1998

Conference Proceeding 圖書
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