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2
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Fingerponds : managing nutrients and primary productivity for enhanced fish production in Lake Victoria's wetlands, Uganda / by Rose Christine Kaggwa.
- Taylor & Francis/Balkema,
- 2006.
- Leiden :
-
Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia / by Melesse Temesgen Leye.
- Taylor & Francis/Balkema,
- 2007.
- Leiden :