Hansen, A. H. (1964). Business cycles and national income ([2nd ed.].). Allen & Unwin.
Tohutoru Kātū ChicagoHansen, Alvin H. Business Cycles and National Income. [2nd ed.]. London: Allen & Unwin, 1964.
Tohutoro MLAHansen, Alvin H. Business Cycles and National Income. [2nd ed.]. Allen & Unwin, 1964.
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