Jaffe, C. I. (2007). Public speaking: Concepts and skills for a diverse society (5th ed.). Thomson Wadsworth.
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Dyfyniad Arddull Chicago
Jaffe, Clella Iles. Public Speaking: Concepts and Skills for a Diverse Society. 5th ed. Belmont, CA: Thomson Wadsworth, 2007.
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Dyfyniad MLA
Jaffe, Clella Iles. Public Speaking: Concepts and Skills for a Diverse Society. 5th ed. Thomson Wadsworth, 2007.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.