00983nem2 2200325 450 99000950209040332120111212105819.0000950209FED01000950209(Aleph)000950209FED0100095020920111212d2002----km-y0itay50------baitaUSb-a------aa--aa-aabb----------a1:30000000e0080000e0250000n0250000n0050000Lago CiadDocumento cartograficoil lago africano va scomparendoNational Geographic society1:30000000 (E8°-E25°/N25°-N5°)WashingtonNational geographic societystampa 20021 cartacolor.001000950204AfricaAcqueNational Geographic Society324924ITUNINARICAUNIMARCMP990009502090403321ILFGELago Ciad851311UNINA