00608nam a2200169 a 4500008004100000020001500041245015300056260004700209300002700256504004100283650002800324700002500352710003400377003000100411005001700412040000900429                                          a085092376X10aSustainable Developmentb :An Imperative for Environmental Protection /cReport by a Group of Experts on Environmental Concerns and the Commonwealth  aLondon :bCommonwealth Secretariat, c1991  axii, 157 p. ;c22 cm.   aIncludes bibliographical references.1 aSustainable Development1 aMarstrand, Pauline K  aCommonwealth Group of Experts20230123133317.0  cNUST