00264nam a2200097Ia 4500008004100000082001300041100001800054245003000072260005100102300001300153230907s9999||||xx |||||||||||||| ||und||  a330bCAS  aCase, Karl E. 0aPrinciples of economics /  aPrentice Hall,bUpper Saddle River, NJ :c2015  a779 p. :