Ehninger, Douglas. <br/><br/>
Principles of speech communication / 
Douglas Ehninger. 
 - 8th. 
 - Dallas, Texas :  Scott, Foresman and co.,  c1978. 
 - xix, 492 p. 
<br/><br/><label>ISBN: </label>0673151182 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oral communication.<br/>Public speaking.
<br/><br/><label>LC Class. No.: </label>PN4121  / .M578