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_aElwell, H. A. _936457 |
| 245 | 1 | 2 | _aA rapid method for estimating the dry mass of soil from erosion plots |
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_aSalisbury, Rhodesia : _bDepartament of Conservation and Extension, _c1978? |
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_a18 p. _b: gráfs. |
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_aResearch bulletin _v; 20 |
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_aErosión. _937335 |
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_aResearch bulletin _v; 20 _996062 |
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