00550cas|a2200169 i 450000500170000000800410001703500150005810000220007324500450009526000540014030000100019449000260020465000250023065000150025565000290027081000810029920260818172310.0100301s1964    us  u m rtt  00|  a1eng d  a.b117264161 aAdams, Russell B.10aPopulation mobility in the Upper Midwest  aMinneapolis, Minn. :bMinnesota University,c1964  a60 p.1 aUrban report ;vno. 610aResidential mobility10aPopulation10aCities and townsxGrowth1 aMinnesota.bUniversity.bUpper Midwest Economy Study.tUrban report ;vno. 6