00465nam a2200169 a 4500008004100000020001500041245005600056260003000112300002100142650001900163650001600182650001500198710005500213003000100268005001700269040000900286                                          a039306392500aWho speaks for earth? /cBarbara Ward ... [et al.].  aNew York :bNorton,c1973  a173 p. ;c21 cm. 0aHuman ecology. 0aPopulation. 0aPollution.2 aInternational Institute for Environmental Affairs.20230123133120.0  cNUST