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La storia economica e il passaggio paradigmatico da concetti quantitativi e statici a qualitativi e dialettici
Niebyl, Karl H., (1975)
Criteria for the formulation of an adequate approach in aiding the development of underdeveloped areas
Niebyl, Karl H., (1952)
A reexamination of the classical theory of inflation
Niebyl, Karl H., (1940)