Communication research :  strategies and source / 
Rebecca B. Rubin ... [et al.]. 
 - 7th  ed. 
 - Boston :  Wadsworth,  2010. 
 - xv, 315  p. 
<br/><br/><label>ISBN: </label>0495793441 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication--Research.