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2
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Two essays on socio-economic aspects of soil degradation/ by Leslie Lipper, Dan Osgood.
- 363.883 L765
- Lipper, Leslie.
- FAO,
- c2001.
- Rome :
-
Zero tillage development in tropical Brazil : the story of a successful NGO activity / by John N. Landers.
- 631.58140981 L255
- Landers, John N.
- FAO,
- c2001.
- Rome :