Riker, W. H. (1965). Democracy in the United state. Macmillan.
Tohutoru Kātū Chicago (17th ed.)Riker, William H. Democracy in the United State. New York: Macmillan, 1965.
Tohutoro MLA (9th ed.)Riker, William H. Democracy in the United State. Macmillan, 1965.
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