00300nam a2200109Ia 4500008004100000020001500041082001300056100001500069245003600084260004300120300002700163250602s9999    xx            000 0 und d  a1884122795  a333.7ANN  aKofi Annan 4aThe Challenge of sustainability  aUSAbGlowbal Enviroment Facilityc2002  a102 p. : ill. ; 24 cm.