ISBN 1890432229 books & textbook
Twelve Secrets Of A Great Voice; A Practical Guide for Enhancing Your Presentations, Career & Life
Hall, Michael W DeLong, Pamela L Childress, John Umriel, Effy
CCI Publishing /1999-09-14 Paperback / 189 Pages
isbn-10: 1890432229 / isbn-13: 9781890432225
