00426nam a2200157Ia 4500008004100000020001500041035001600056082001700072100001800089245006400107250001100171260003800182300001100220650002000231700001700251770711d1997    mx        a         spa d  a9688808741  a(Sirsi) 89910a338.5 bC17p10aCase, Karl E.10aPrincipios de microeconomía /cCarlos Karl E, Ray C. Fair  a4a ed.  aMéxico :bPrentice hall,c1997.  a640 p. 4aMicroeconomía1 aFair, Ray C.