Nelson, Paul iSpeak : public speaking for contemporary life / Paul Nelson, Scott Titsworth, Judy Pearson. - Boston : McGraw-Hill Higher Education, 2008 - xxvii, 282 p. : ill. ; 26 cm. ISBN: 9780073385082 Subjects--Topical Terms: Public speaking. Subjects--Index Terms: Diễn thuyết Dewey Class. No.: 808.51