00284nam a2200121Ia 4500082002600000100001800026245004000044250000800084260004400092300001600136500000500152700000500157  a338.516024658bJ59.PE  aJeynes, P. H.  aProfitability and economic choiceb  a1st  aIowabIowa State University Pressc1968  axvii, 622p.  a  a