Frank, T., & Ray, D. (1979). Basic business and professional speech communication. Prentice-Hall.
Citace podle Chicago (17th ed.)Frank, Ted, a David Ray. Basic Business and Professional Speech Communication. Englewood Cliffs, NJ: Prentice-Hall, 1979.
Citace podle MLA (9th ed.)Frank, Ted, a David Ray. Basic Business and Professional Speech Communication. Prentice-Hall, 1979.
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