Dyfyniad APA

Anne Gregory. (2003). Public relations in practice: A sector-by-sector guide. Crest Publishing House.

Dyfyniad Arddull Chicago

Anne Gregory. Public Relations in Practice: A Sector-by-sector Guide. New Delhi: Crest Publishing House, 2003.

Dyfyniad MLA

Anne Gregory. Public Relations in Practice: A Sector-by-sector Guide. Crest Publishing House, 2003.

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