Harris, L., & Harris, J. C. How to Become a Powerful and Persuasive Public Speaker.
استشهاد بنمط شيكاغوHarris, Luke, و Julia C. Harris. How to Become a Powerful and Persuasive Public Speaker.
MLA استشهادHarris, Luke, و Julia C. Harris. How to Become a Powerful and Persuasive Public Speaker.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.