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_aMabbutt, J. A. _eed. _969318 |
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_aSocial and environmental aspects of desertification _b: proceedings of an inter-congress meeting of the International Geographical Union... |
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_aTokyo : _bUnited Nations University, _c1980 |
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_a40 p. _b; mapas |
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_aNRTS, 5/UNUP _v; 127 |
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_aBATCH-UPD _b10 _c20130110 _lUCH01 _h0300 |
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_aDesiertos. _932143 |
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_aErosión. _937335 |
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_aWilson, Andrew. _9122175 |
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_aNRTS, 5/UNUP _v; 127 _982097 |
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