Barrett, H. (1981). Practical uses of speech communication (5th ed.). Holt, Rinehart and Winston.
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Dyfyniad Arddull Chicago
Barrett, Harold. Practical Uses of Speech Communication. 5th ed. New York: Holt, Rinehart and Winston, 1981.
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Dyfyniad MLA
Barrett, Harold. Practical Uses of Speech Communication. 5th ed. Holt, Rinehart and Winston, 1981.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.