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|a eng
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|a 333.72
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| 100 |
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|a Villiers, A.
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| 245 |
0 |
0 |
|a Our mother nature;
|b the conservation of nature and natural resources in the Sudan-Sahel zone of Africa /
|c A. Villiers.
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| 260 |
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|a Morges :
|b IUCN,
|c 1963
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| 300 |
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|a 75 p.
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| 440 |
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|a IUCN publication new series suplementary papers ;
|v no. 2
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| 650 |
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|a CONSERVACION DE LA NATURALEZA-AFRICA
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