00342nam a2200121Ia 4500020001500000082003300015100002000048245007600068260005200144300001400196500000500210700000500215  a0801813085  a658.838622343090457bM282.CW  aManners, Gerald  aThe changing world market for iron ore 1950-1980ban economic geography  aBaltimorebJohns Hopkins University Pressc1971  axv, 384p.  a  a