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_aBrown, Lester R. _915674 |
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_aSoil erosion _b: quiet crisis inthe world economy |
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| 260 |
_aWashington : _bWorldwatch Institute, _c1984 |
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| 300 | _a49 p. | ||
| 490 |
_aWorldwatch paper _v; 60 |
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_aBATCH-UPD _b10 _c20130109 _lUCH01 _h2332 |
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_aBATCH-UPD _b10 _c20130110 _lUCH01 _h2005 |
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_aCONVERSION _b10 _c20130109 _lUCH01 _h1315 |
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_aErosión. _937335 |
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_aSuelos _xConservación. _9110283 |
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_aWolf, Edward C. _9122422 |
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| 830 | 0 |
_aWorldwatch paper _v; 60 _9122751 |
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