FOGELIN, R. J. (1982). Understanding arguments: An introduction to informal logic (2nd ed.). Harcourt, Brace Jovanovich.
Chicago Style (17. basım) AtıfFOGELIN, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd ed. New York: Harcourt, Brace Jovanovich, 1982.
MLA (9th ed.) AtıfFOGELIN, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd ed. Harcourt, Brace Jovanovich, 1982.
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