00286nam a2200109Ia 4500082002000000100003700020245004100057260003300098300001000131500000500141700003000146  a330.08bM154.RI  aMcKean, J. R. and Wykstra, R. A.  aReadings in introductory economicsb  aNew YorkbHarper & Rowc1971  a406p.  a  aWykstra, R. A. ; jt auth.