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2
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Developing a participatory extension approach : a design for Siavonga district, Zambia / Uwe Jens Nagel.
- Margraf,
- 1992.
- Berlin :
-
From subsistence to market oriented livestock smallholder development in Nicaragua and Honduras / Elsa Aburto Sanchez.
- Margraf,
- cop. 2008.
- Weikersheim :