00441nam a2200145Ia 450000500170000000800410001708200120005810000210007024500400009126000410013130000080017294200070018099900150018795200930020220260224041017.0260224s9999||||xx |||||||||||||| ||und||  a909 CLA  aClayton, A.M.H.  0aSustainability : a systems approach  aLondon: Earthscan Publicationsc1996  a258  cBK  c4291d4291  00104070aSAUbSAUd2026-02-24l0o909 CLAp49641r2026-02-24 04:10:17w2026-02-24yBK