00418nam a2200133Ia 4500008004100000010001200041040001700053082002200070100002400092245006800116260003100184300001500215650005400230190328s9999||||xx |||||||||||||| ||und||  a56-7159  aNITILcNITIL  221sta330.1bK79P  aKoivisto, William A 0aPrinciples and problems of modern economicscWilliam A Koivisto  aNew YorkbJohn Wileyc1957  axxi, 834p.  aEconomics; Welfare economics; Income distribution