00278nam a2200121Ia 4500020001500000082001900015100001800034245002500052260004200077300002700119500000500146700000500151  a0713134941  a338.5bN884.RE  aNorton, G. A.  aResource economicsb  aLondonbEdward Arnold-Heinemannc1984  avi, 164p. Index. Bibl.  a  a