Jefkins, F. (1977). Planned press and public relations. International Text Book Co..
Chicago Edition CitationJefkins, Frank. Planned Press and Public Relations. London: International Text Book Co., 1977.
Cita MLAJefkins, Frank. Planned Press and Public Relations. International Text Book Co., 1977.
Atenció: Aquestes cites poden no estar 100% correctes.