Knapp, Mark L. <br/><br/>
Essentials of nonverbal communication / 
by Mark L. Knapp. 
 - ed. 
 - New York :  Holt, Rinehart and Winston,  1980. 
 - viii, 264  p. :  ill. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Uniform Titles: </label><br/>
<br/><br/><label>LC Class. No.: </label>BF637  / .C45  / K56