Cita APA (7th ed.)

Guth,David, & Marsh,Charles. (2017). Public relations: A values-driven approach (6th.). Pearson.

Cita Chicago (17th ed.)

Guth,David, i Marsh,Charles. Public Relations: A Values-driven Approach. 6th. New York: Pearson, 2017.

Cita MLA (9th ed.)

Guth,David, i Marsh,Charles. Public Relations: A Values-driven Approach. 6th. Pearson, 2017.