00737cam a2200241   45000010006000000050017000060080041000230200015000640200018000790350003000970410008001000500023001080820014001311000021001452450043001662600044002093000028002535000038002816500047003196500045003666500057004116530027004681134720230410115546.0060907s1992    sp                  spa    a8485855647  a9788485855643    aspa14aHF 1025bK94g 199200a338.6/0421 aKrugman, Paul R.10aGeografía y comercio /cPaul Krugman  aBarcelona :bAntoni Bosch Editor,c1992  a152 p.bgráf.c22 cm.  aTraducido de: Geography and trade 0aCommercial geographyxMathematical models. 0aEconomic geographyxMathematical models. 0aRegional economic disparitiesxMathematical models..  aGeografía comercial.