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2
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From subsistence to specialised commodity production : commercialisation and pastoral dairying in Africa / Patrick M. Sikana, Carol K. Kerven and Roy H. Behnke.
- Overseas development institute. Pastoral development network,
- 1993.
- London :
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Range ecology at disequilibrium : new models of natural variability and pastoral adaptation in African savannas / ed. by Roy H. Behnke, Ian Scoones and Carol Kerven.
- Overseas development institute [etc.],
- 1993.
- London :