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Agricultural hand tools in emergencies : guidelines for technical and field officers / John E. Ashburner, Josef Kienzle.
- 631.3 A821
- Ashburner, John E.
- Food and Agriculture Organization of the United Nations,
- 2013.
- Rome :
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Mechanization for rural development : a review of patterns and progress from around the world / editors, Josef Kienzle, John E. Ashburner, Brian G. Sims.
- 631.5 M4868
- Plant Production and Protection Division, Food and Agriculture Organization of the United Nations,
- 2013.
- Rome :