Osborn, M., & Osborn, S. (1991). Public speaking. Houghton Mifflin.
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Citação norma Chicago
Osborn, Michael, and Suzanne Osborn. Public Speaking. Boston: Houghton Mifflin, 1991.
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Citação norma MLA
Osborn, Michael, and Suzanne Osborn. Public Speaking. Houghton Mifflin, 1991.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.