The Challenge of Effective Speaking in a Digital Age 17th ed text Australia Cengage Learning 2018 eng xxi, 323 hlm. 28 cm. Rudolph F. Verderber PUBLIC SPEAKING 808.51 808.51 Ver c 1 978-1-305-94819-8 INLIS000000000084889 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)