Dyfyniad APA

Cowell, T. L. (1999). Public speaking: Challenges and choices (Student workbook). Oklahoma: Alliance Press.

Dyfyniad Arddull Chicago

Cowell, Tara L. Public Speaking: Challenges and Choices (Student Workbook). Oklahoma: Alliance Press, 1999.

Dyfyniad MLA

Cowell, Tara L. Public Speaking: Challenges and Choices (Student Workbook). Oklahoma: Alliance Press, 1999.

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