Dyfyniad APA

Osborn, M., Osborn, S., & Osborn, R. (2009). Public speaking (2nd Custom ed. for Pepperdine Univ.). Pearson Custom Publishing.

Dyfyniad Arddull Chicago

Osborn, Michael, Suzanne Osborn, and Randall Osborn. Public Speaking. 2nd Custom ed. for Pepperdine Univ. New York: Pearson Custom Publishing, 2009.

Dyfyniad MLA

Osborn, Michael, et al. Public Speaking. 2nd Custom ed. for Pepperdine Univ. Pearson Custom Publishing, 2009.

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