00349nam a2200121Ia 4500008004100000020001500041100001100056245005200067260002400119300001600143650003500159650003300194120527s9999    xx            000 0 und d  a9781811862  aNISER.  aNigeria migration and urbanization survey 1993/  aIbadanbNISERc1997  axvi, 120p.;  aRural-urban migrationvNigeria  aMigration, internalvNigeria