Cita APA (7th ed.)

Butterick, K. (2011). Introducing Public Relations Theory and Practice. Sage Publications.

Cita Chicago (17th ed.)

Butterick, Keith. Introducing Public Relations Theory and Practice. India: Sage Publications, 2011.

Cita MLA (9th ed.)

Butterick, Keith. Introducing Public Relations Theory and Practice. Sage Publications, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.