00835nem 2200325 n 450 991079150290332120200520144314.0(CKB)2560000000057148(MiAaPQ)EBC3329683(Au-PeEL)EBL3329683(CaPaEBR)ebr10002524(OCoLC)842614286(EXLCZ)99256000000005714820101210d1999 uy engurcn|||||||||Chad[electronic resource][S.l.] Maps.comc19991 online resource (1 map)Hypsometric map, Africa, ChadChadMapsChadMaps.com (Firm)MiAaPQMiAaPQMiAaPQBOOK9910791502903321Chad3753662UNINA