APA استشهاد

Foster, J. (2003). Effective writing skills for public relations. Crest Publishing House.

استشهاد بنمط شيكاغو

Foster, John. Effective Writing Skills for Public Relations. New Delhi: Crest Publishing House, 2003.

MLA استشهاد

Foster, John. Effective Writing Skills for Public Relations. Crest Publishing House, 2003.