Books

1. Diseases of vegetables (Ministry of Agriculture, Fisheries and Food. Bulletin 123)
   

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2. Biological Efficiency in Agriculture
   

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3. Five Best Days of Summer: 150th Great Jones County Fair 2002 (Iowa)
   

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4. Dairy Microbiology
   

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5. Productive agriculture and a quality environment: Food production, living, recreation, the rural-urban interface
   

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Books