Lambert, K., & Ulrich, W. (1980). The nature of argument. Macmillan.
Tohutoru Kātū Chicago (17th ed.)Lambert, Karel, me William Ulrich. The Nature of Argument. New York: Macmillan, 1980.
Tohutoro MLA (9th ed.)Lambert, Karel, me William Ulrich. The Nature of Argument. Macmillan, 1980.
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