Roche, J. P. (1964). Shadow and substance: Essays on the theory and structure of politics. New York: Macmillan.
Παραπομπή Chicago StyleRoche, John P. Shadow and Substance: Essays On the Theory and Structure of Politics. New York: Macmillan, 1964.
Παραπομπή MLARoche, John P. Shadow and Substance: Essays On the Theory and Structure of Politics. New York: Macmillan, 1964.
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