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Human settlements basic statistics 1990 = Statistiques de base établissements humains 1990 = Estadisticas basicas de asentamientos humanos 1990 / United nations centre for human settlements.
- Habitat,
- 1990.
- Nairobi :
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Introduction to the concepts of agroforestry = Introduction aux concepts de l'agroforesterie / Emmanuel Torquebiau.
- International council for research in agroforestry (ICRAF),
- 1990.
- Nairobi :
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Quelques noms vernaculaires de ligneux du Rwanda / Michel Baumer.
- International council for research in agroforestry,
- 1990.
- Nairobi :