APA استشهاد

Oberg, B. C. (2006). introduction to public speaking. Jaico Publishing.

استشهاد بنمط شيكاغو

Oberg, Brent C. Introduction to Public Speaking. Mumbai: Jaico Publishing, 2006.

MLA استشهاد

Oberg, Brent C. Introduction to Public Speaking. Jaico Publishing, 2006.