Hagen, E. E. (1962). On the theory of social change: How economic growth begins. Illinois: The Dorsey Press.
Παραπομπή Chicago StyleHagen, Everett E. On the Theory of Social Change: How Economic Growth Begins. Illinois: The Dorsey Press, 1962.
Παραπομπή MLAHagen, Everett E. On the Theory of Social Change: How Economic Growth Begins. Illinois: The Dorsey Press, 1962.
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