004150000a22001450004500060000800000082001400008100001800022245007100040260002500111260000900136300000800145490003900153490003600192650004100228  a100  a338.9 ISA  aIsard, Walter  aMethods of regional analysis: an introduction to regional  science  aCambridge, MIT press  c1960  a765  a4cRegional science studies series  aRegional science studies series  aEconomics/migration/regional sciecne