00342nam a2200121Ia 4500082002300000100008300023245005300106260003200159300001300191500000500204653000600209700000500215  a309.10942bIn61.CP  aInternational Geographical Congress, 20th, Royaume Univ., United Kingdom, 1967  aCongress proceedingsbcEd. by J. Wreford Watson  aLondonbThomas Nelsonc1967  ax, 401p.  a  a   a