00338nam a2200109Ia 450000500170000000800410001702000150005805000150007310000190008824500870010726000340019420251229175538.0251229s9999    xx            000 0 und d  a0080245013  aSK 357 .M9  aMyers, Norman. 4aThe Sinking Arkb A new look at the problem of disappearing Species.cNorman Myers  aOxfordb Pergamon Pressc1979