APA (7th ed.) Zitazioa
Gregory, H. (2008). Public speaking for college and career (8th. ed.). McGraw-Hill.
Chicago Style (17th ed.) Zitazioa
Gregory, Hamilton. Public Speaking for College and Career. 8th. ed. Boston: McGraw-Hill, 2008.
MLA (9th ed.) Zitazioa
Gregory, Hamilton. Public Speaking for College and Career. 8th. ed. McGraw-Hill, 2008.
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