00300nam a2200109Ia 4500008004100000040002500041082001200066100002300078245005200101260002900153300000800182230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a330 N27  aNebres, Abriel M.  0aEconomics : concepts, theories and application   bNational Bookstorec2008  a312