00255nam a2200109Ia 4500082002500000100001600025245004500041260003400086300001500120500000500135700000500140  a338.4766265bEa12.FE  aEarl, D. E.  aForest energy and economic developmentb  aOxfordbClarendon Pressc1975  axii, 128p.  a  a