00523    a2200169   4500041000800000082001500008110006300023245005100086260003800137300002900175504004400204650002500248653002200273650002100295650002200316650001500338  aEng  a333bN213r  aNational Research Council. Com mittee on Resources and Man  aResources and man, a study and recommendations  aSan FranciscobW.H. Freemanc1969  axi, 259p.billus.,. maps  aBibliography at the end of each chapter  aEnvironmental policy  aNatural resources  aEnergy resources  aMineral resources  aEcosystems