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Dyfyniad Arddull ChicagoWindahl, Swen, Benno Signitzer, and Jean T. Olson. Using Communication Theory: An Introduction to Planned Communication. London ; Newbury Park, Calif.: Sage Publications, 1992.
Dyfyniad MLAWindahl, Swen, et al. Using Communication Theory: An Introduction to Planned Communication. Sage Publications, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.