Berko, R. M., Wolvin, A. D., & Curtis, R. (1990). This business of communicating (Fourth edition.). Wm. C. Brown Publishers.
Chicago Style (17th ed.) CitationBerko, Roy M., Andrew D. Wolvin, and Ray Curtis. This Business of Communicating. Fourth edition. Dubuque, Iowa: Wm. C. Brown Publishers, 1990.
MLA citiranjeBerko, Roy M., et al. This Business of Communicating. Fourth edition. Wm. C. Brown Publishers, 1990.
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