Jefkins, F. (1983). Public relations. MacDonald and Evans.
Cita Chicago (17th ed.)Jefkins, Frank. Public Relations. Estover, Plymouth: MacDonald and Evans, 1983.
Cita MLA (9th ed.)Jefkins, Frank. Public Relations. MacDonald and Evans, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.