00351nam a22001097a 450000500170000008200210001724501200003826000410015830000080019994200150020799900190022220250820113919.0  a330.90021 WOR.N0  aWorld Statistics in Brief : U N Statistical Pocket Book /b Department of International Economic and Social Affairs  aNew York: b United Nations, c1990.  a117  2ddccUN&WB  c750994d750994