APA (7th ed.) Citation

Katz, E., Lazarsfeld, P. F., & Roper, E. (1964). Personal influence: The part played by people in the flow of mass communications (1st Free Press paperback ed.). The Free Press of Glencoe.

Chicago Style (17th ed.) Citation

Katz, Elihu, Paul Felix Lazarsfeld, and Elmo Roper. Personal Influence: The Part Played by People in the Flow of Mass Communications. 1st Free Press paperback ed. New York: The Free Press of Glencoe, 1964.

MLA (9th ed.) Citation

Katz, Elihu, et al. Personal Influence: The Part Played by People in the Flow of Mass Communications. 1st Free Press paperback ed. The Free Press of Glencoe, 1964.