00298nam a2200109Ia 4500008004100000020001800041041000800059082001500067100001900082245005200101260003500153230717s9999    xx            000 0 und d  a92-1-151274-3  aeng  a304.6bUNI  aUnited Nations  aSex & Age Distrubution Of The World Populations  aNew YorkbUnited Nationsc1994