Wilkinson, C. W., Wilkinson, D. C., & Vik, G. N. (1986). Communicating through writing and speaking in business (9th ed.). Irwin.
Citácia podle Chicago (17th ed.)Wilkinson, C. W., Dorothy C. Wilkinson, a Gretchen N. Vik. Communicating Through Writing and Speaking in Business. 9th ed. Homewood: Irwin, 1986.
Citácia podľa MLA (8th ed.)Wilkinson, C. W., et al. Communicating Through Writing and Speaking in Business. 9th ed. Irwin, 1986.
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