Dyfyniad APA

Foster, J. (2008). Effective writing skills for public relations (Ed.3.). Kogan page.

Dyfyniad Arddull Chicago

Foster, John. Effective Writing Skills for Public Relations. Ed.3. New Delhi: Kogan page, 2008.

Dyfyniad MLA

Foster, John. Effective Writing Skills for Public Relations. Ed.3. Kogan page, 2008.

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