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Dyfyniad Arddull ChicagoBaran, Stanley. Introduction to Mass Communication. 4th ed. New York: McGraw-Hill, 2006.
Dyfyniad MLABaran, Stanley. Introduction to Mass Communication. 4th ed. New York: McGraw-Hill, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.