00286nam a2200109Ia 4500082001900000100002600019245005400045260005200099300001500151500000500166700000500171  a333.7bC617.NR  aClawson, Marion , ed.  aNatural resources and international developmentb  aBaltimorebJohns Hopkins University Pressc1964  axii, 462p.  a  a