00489nam a22001337a 4500008004100000020001600041082001400057245007300071260004800144300002200192500002400214650004900238710006800287101217t        xxu||||| |||| 00| 0 eng d  a085092376 X  221a25.9700aSustainable Development:bAn Imperative for Environmental Protection  aLondon:bEconomic Affairs Division,cc1991.  axii,157p.:bill.;  aincludes references  2Environmentasustainable developmentvreport  aGroup of Experts on Environmental Concerns and the Commonwealth