00428nam a2200157 a 45000010018000000050017000180080041000350900017000761000014000932450060001072600019001673000011001865010012001976500046002099990015002550000000000003168620260805123851.0070429s1996    us            000a  eng    a33М.0bP-430 aPerman R.10aNatural Resource and Environmental EconomicspPerman R.  aLondonbc1996  a396 p.  an/239574 aПрикладнаяaэкономика.  c6873d6873