Style de citation APA (7e éd.)

Matthews Kelli. (2009). Principles of public relations. Mcgraw -hill.

Style de citation Chicago (17e éd.)

Matthews Kelli. Principles of Public Relations. New Delhi: Mcgraw -hill, 2009.

Style de citation MLA (9e éd.)

Matthews Kelli. Principles of Public Relations. Mcgraw -hill, 2009.