Gronbeck, B. E., Ehninger, D., & Monroe, A. H. (1992). Principles of speech communication (11th brief ed.). Harper Collins.
Chicago-viite (17. p.)Gronbeck, Bruce E., Douglas Ehninger, ja Alan H. Monroe. Principles of Speech Communication. 11th brief ed. [United States]: Harper Collins, 1992.
MLA-viite (9. p.)Gronbeck, Bruce E., et al. Principles of Speech Communication. 11th brief ed. Harper Collins, 1992.
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