Berko, R. M., Wolvin, A. D., & Wolvin, D. R. (1998). Communicating: A social and career focus (Seventh edition.). Houghton Mifflin Company.
Chicago Style (17th ed.) CitationBerko, Roy M., Andrew D. Wolvin, and Darlyn R. Wolvin. Communicating: A Social and Career Focus. Seventh edition. Boston: Houghton Mifflin Company, 1998.
MLA citiranjeBerko, Roy M., et al. Communicating: A Social and Career Focus. Seventh edition. Houghton Mifflin Company, 1998.
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