Cutlip, S. M., Center, A. H., & Broom, G. M. (1985). Effective public relations (6th ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Cutlip, Scott M., Allen H. Center, y Glen M. Broom. Effective Public Relations. 6th ed. Englewood Cliffs: Prentice-Hall, 1985.
Cita MLA (9a ed.)Cutlip, Scott M., et al. Effective Public Relations. 6th ed. Prentice-Hall, 1985.
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