00309nam a2200109Ia 4500008004100000020001800041082001900059100001900078245003200097260004900129300002100178260211b        |||||||| |||| 00| 0 eng d  a9780521827478  a338.5bR573.EM  aRiley, John G.  aEssential microeconomicsb/  aNew York:bCambridge University Press,c2012  axxi, 694p. Index