00295nam a2200109Ia 4500008004100000040003800041100002000079245002900099250000900128260004000137653000800177211228s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aAmerican, E. A. 0aReading in price theory.  aN.d.  bGEORGE ALLEN & UNLWINaLONDONc1970  aECO