Rapport de mission dans le cadre du Projet Regional pour l'Afrique de Conservation des Sols: Gabon, Congo, Zaire
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| Format: | Texto biblioteca |
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(np)
1984
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| Subjects: | GCP, EROSION, SOIL CONSERVATION, EROSION CONTROL, LEGISLATION, CONSERVATION DES SOLS, CONSERVACION DE SUELOS, LUTTE ANTIEROSION, CONTROL DE LA EROSION, LEGISLACION, |
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