Dyfyniad APA

Foster, J. (2003). Effective writting skils for public relations. Crest Publishing House.

Dyfyniad Arddull Chicago

Foster, John. Effective Writting Skils for Public Relations. Crest Publishing House, 2003.

Dyfyniad MLA

Foster, John. Effective Writting Skils for Public Relations. Crest Publishing House, 2003.

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