Lua APA (7ú heag.)

Lambert, K., & Ulrich, W. (1980). The nature of argument. Macmillan.

Lua i Stíl Chicago (17ú heag.)

Lambert, Karel, agus William Ulrich. The Nature of Argument. New York: Macmillan, 1980.

Lua MLA (9ú heag.)

Lambert, Karel, agus William Ulrich. The Nature of Argument. Macmillan, 1980.

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