Verderber, Rudolph F Effective speaking : challenges and solutions / Rudolph F. Verderber, Kathleen S. Verderber, Deanna D. Sellnow. - Australia : Cengage Learning, c2009. - 254 pages. : Illustrations. ; 23 cm. Printed in the Philippines by MG Reprographics, 2009. Includes bibliographical references and index. ISBN: 9789814281867 (NP) Subjects--Topical Terms: Public speaking. LC Class. No.: PN 4121 .V47 2009 F