00280nam a2200109Ia 4500082002000000100003400020245004700054260004300101300001600144500000500160700000500165  a338.1bAm512.RE  aAmerican Economic Association  aReadings in the economics of agricultureb  aLondonbGeorge Allen & Unwin Ltdc1970  axxiv, 517p.  a  a