Cita APA (7th ed.)
Jefkins, F. (1992). Public relations (4th ed.). Pitman Publishing.
Cita Chicago (17th ed.)
Jefkins, Frank. Public Relations. 4th ed. London: Pitman Publishing, 1992.
Cita MLA (9th ed.)
Jefkins, Frank. Public Relations. 4th ed. Pitman Publishing, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.