00285    a2200121   4500100001800000245005200018260000900070490001900079500001100098650002400109942001500133999001500148  aPhilip Martin  aInternational Migration:bFacing the Challenges  c2002  aVol. 57, No. 1  aBox 22  2Population Bulletin  cPERIODICAL  c2648d2648