00829cam a2200253 a 450000500170000000800410001702000150005804000230007308200190009610000190011524500910013425000120022526000420023730000420027936500140032150000200033550400680035552100240042365000290044765000350047665000290051170000130054070000220055320240703193524.0950921s1996    enkab    b    001 0 eng    a0582257271  aBD- DhIUcBD- DhIU00a333.7220bPEN14aPerman, Roger,10aNatural resource and environmental economics /cRoger Perman, Yue Ma, James McGilvray.  a3rd ed.  aLondon ;aNew York :bLongman,c1996.  axxiii, 396 p. :bill., maps ;c25 cm.  b800cBDT.  aIncludes index.  aIncludes bibliographical references (p. [378]-388) and indexes.  aDept. of Economics. 0aEnvironmental economics. 0aNatural resourcesxManagement. 0aSustainable development.1 aMa, Yue,1 aMcGilvray, James.