Jefkins, F. (1977). Planned press & public relations. Intertext.
Chicago Style aipamenaJefkins, Frank. Planned Press & Public Relations. London: Intertext, 1977.
MLA aipamenaJefkins, Frank. Planned Press & Public Relations. Intertext, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.