APA-čujuhus (7. p.)
katula, R. (1987). Principles and patterns of public speaking. Wadsworth.
Chicago-čujuhus (17. p.)
katula, Richard. Principles and Patterns of Public Speaking. Califonia: Wadsworth, 1987.
MLA-čujuhus (9. p.)
katula, Richard. Principles and Patterns of Public Speaking. Wadsworth, 1987.
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