Eucken, W. (1951). This unsuccessful age: The pains of economic progress. London: William Hodge and Company, LTd.
Chicago-tyylinen lähdeviittausEucken, Walter. This Unsuccessful Age: The Pains of Economic Progress. London: William Hodge and Company, LTd, 1951.
MLA-viiteEucken, Walter. This Unsuccessful Age: The Pains of Economic Progress. London: William Hodge and Company, LTd, 1951.
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