Verderber, R. F., Verderber, K. S., & Sellnow, D. D. (2012). The challenge of effective speaking (15th ed.). Boston, MA : Wadsworth Cengage Learning.
Chicago Style CitationVerderber, Rudolph F., Kathleen S. Verderber, and Deanna D. Sellnow. The Challenge of Effective Speaking. 15th ed. Boston, MA : Wadsworth Cengage Learning, 2012.
MLA CitationVerderber, Rudolph F., Kathleen S. Verderber, and Deanna D. Sellnow. The Challenge of Effective Speaking. 15th ed. Boston, MA : Wadsworth Cengage Learning, 2012.
Warning: These citations may not always be 100% accurate.