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technology-agriculture - general

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Cover of Agriculture and the environment by foppe b. dewalle,f.b. de walle,j. sevenster

Agriculture and the environment

By Foppe B. DeWalle,F.B. de Walle,J. Sevenster

Cover of Agriculture and modern technology by thomas r. degregori,ralph battles,robert thompson

Agriculture and modern technology

By Thomas R. DeGregori,Ralph Battles,Robert Thompson

Cover of Fungicidal Activity by

Fungicidal Activity

By