00842nam a22002177a 4500003000600000005001700006008004100023040000800064050002200072110004300094245013100137260004400268300003600312440003300348610008100381650005600462650004500518650002000563650002100583651002000604AUA.120180423154117.0150318t        xxu||||| |||| 00| 0 eng d  cJTL  aGC1085b.L35 2004  aUnited Nations Environmental Programme  aGlobal international waters assessment :bregional assessment 43 : Lake Chad basin. /cUnited Nations Environmental Programme.  aSweden :bUniversity of Kalmar,cc2004.  a129 p. :bill. (col.) :c28 cm.  aGIWA Regional assessmentv43  aUnited Nations Environment ProgrammebGlobal International Waters Assessment  aEnvironmental protectionxInternational cooperation  aWater supply xInternational cooperation  aEutrophication.  aMarine pollution  aLake Chad basin