Books

1. Nitrogen Turnover in the Soil-Crop System : Modelling of Biological Transformations, Transport of Nitrogen and Nitrogen Use Efficiency (Developments in Plant and Soil Sciences)
   

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2. The Duty of a Steward to His Lord
   

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3. Progress, Hunger and Envy: Commercial Agriculture, Marketing and Social Transformation in the Venezuelan Andes (Stockholm Studies in Social Anthropology, No 36)
   

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4. Poultry Feedstuffs : Supply, Composition and Nutritive Value (CABI Publishing)
   

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5. Century farms of Garfield County
   

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Books