Michels , R. (1966). Political parties: A social-ogical study of the oligarchic al tendencies of modern democracy. Free Press.
Citace podle Chicago (17th ed.)Michels , Robert. Political Parties: A Social-ogical Study of the Oligarchic Al Tendencies of Modern Democracy. New York: Free Press, 1966.
Citace podle MLA (9th ed.)Michels , Robert. Political Parties: A Social-ogical Study of the Oligarchic Al Tendencies of Modern Democracy. Free Press, 1966.
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