APA ציטוט

Verderber, R. F., & Sellnow, D. D. (2008). Effective speaking. Belmont, CA: Thomson/Wadsworth.

Trích dẫn kiểu Chicago

Verderber, Rudolph F., và Deanna D. Sellnow. Effective Speaking. Belmont, CA: Thomson/Wadsworth, 2008.

ציטוט MLA

Verderber, Rudolph F., và Deanna D. Sellnow. Effective Speaking. Belmont, CA: Thomson/Wadsworth, 2008.