00386nam a2200145Ia 450000100060000000800410000602000180004704000130006508200190007810000180009724500560011526000510017130000110022254600070023323162140410s9999    xx            000 0 und d  a1-85421-144-7  cPK-LaUMT  a 333.72bWAL-S  aRonnie Walker  aSolar blue:bthe reality environmentcRonnie Walker  aWorcs:bThe Self Publishing Association,c1991  a189 p.  aEN