00387nam a2200133Ia 4500008004100000020001500041041000800056082001700064100001800081245009000099250000600189260004600195300001200241210716s1993    xx            000 0 und d  a0887307043  aeng  a658.408 HANP  aHawken, Paul.  aEcology of commerce: a declaratio of substainability.bDeclaratio of substainability.  a1  aNew YorkbHarper Collins Publishersc1993  axvi,250