Austin, E. W., & Clubb, J. M. (1986). Political facts of the United States since 1789. Columbia University Press.
Citace podle Chicago (17th ed.)Austin, Erik W., a Jerome M. Clubb. Political Facts of the United States Since 1789. New York: Columbia University Press, 1986.
Citace podle MLA (9th ed.)Austin, Erik W., a Jerome M. Clubb. Political Facts of the United States Since 1789. Columbia University Press, 1986.
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