TY - BOOK AU - Verderber, Rudolph F., Verderber, Kathleen S., & Sellnow, Deanna D. TI - The challenge of effective speaking SN - 978-0-495-50217-3 U1 - Cir. 808.51 V58 C2008 PY - 2008/// CY - Australia PB - Thompson Learning, Inc. N1 - Includes index ER -