00253nam a2200109Ia 4500008004100000082001500041100001700056245002600073250000900099260002700108300000800135240913s9999||||xx |||||||||||||| ||und||  a140  OKA/P  aSamir okashs 0aPhilosophy of science  aNULL  bOxfordaCalcuttac2002  a144