Lucas, S. (2012). The art of public speaking (11th ed.). McGraw-Hill.
Chicago Style (17. basım) AtıfLucas, Stephen. The Art of Public Speaking. 11th ed. New York: McGraw-Hill, 2012.
MLA (9th ed.) AtıfLucas, Stephen. The Art of Public Speaking. 11th ed. McGraw-Hill, 2012.
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