00408nam a2200157Ia 4500001001100000005001700011008004100028050002500069090000800094245003900102250001300141260004100154300002500195650001500220999001500235000000649820251012174452.0  720606s1963    ilua          000 0 eng00aHB171.5b.B6948 1963  a33010aEconomics: principles and policy.   aRev. ed.  aHomewood, Ill.,bR. D. Irwinc1963.   a388 pbillusc24 cm. 0aEconomics.  c4192d4192