iSpeak improve your speech credibility

书目详细资料
Main Authors:	Nelson, Paul E. (Paul Edward) 1941- (Author), Titsworth, Scott (Author), Pearson, Judy C. (Author)
格式:	图书
语言:	English
出版:	New York, NY McGraw-Hill 2013.
版:	Fifth edition.
主题:	Public speaking.