Ouest (1) Département du Nord (1) Dynamics (1) Preservation (1) Conservation (1) Area (1) Agriculture (1) Aerial photographs (1) Methodology (1) Aerial views (1) Aerial photographs (1) Crack (Drug) (1) Waste lands (1) Vision (1) Rock music (1) Criminals--Rehabilitation (1) Plants (1) Photographic interpretation (1) Necessity (Philosophy) (1) Land use (1) Land settlement (1) Desertification (1) Chronology, Historical (1) Technique (1) Soils (1) Interpretación fotográfica (1) Delincuentes--Rehabilitación (1) Colonización interior (1) Necesidad (Filosofía) (1) Cronología histórica (1)