Books

1. While the Sun Shines: Making Hay in Vermont 1789-1990
   

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2. Introduction to Tropical Agriculture
   

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3. Biological Control of Locusts and Grasshoppers: Proceedings of a Workshop Held at the International Institute of Tropical Agriculture, Cotonou, Repu
   

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4. Rekultivierung zerstörter Landschaften: Ökologie, Meliorationswesen u. Anbautechnik
   

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5. New Strategies in Locust Control
   

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Books