Cita APA (7th ed.)
Katz, E., Lazarsfeld, P. F., & Roper, E. Personal Influence: The Part Played by People in the Flow of Mass Communications. The Free Press.
Cita Chicago (17th ed.)
Katz, Elihu, Paul F. Lazarsfeld, i Elmo Roper. Personal Influence: The Part Played by People in the Flow of Mass Communications. Nueva York, EUA: The Free Press.
Cita MLA (9th ed.)
Katz, Elihu, et al. Personal Influence: The Part Played by People in the Flow of Mass Communications. The Free Press.
Atenció: Aquestes cites poden no estar 100% correctes.