Cofnodi Dyfyniadau
Dyfyniad APA
Hart, R. P., Friedrich, G. W., & Brooks, W. D. (1975). Public communication. Harper & Row.
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Dyfyniad Arddull Chicago
Hart, Roderick P., Gustav W. Friedrich, and William Dean Brooks. Public Communication. New York: Harper & Row, 1975.
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Dyfyniad MLA
Hart, Roderick P., et al. Public Communication. Harper & Row, 1975.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.