Frey, Lawrence R. <br/><br/>
Investigating communication :  an introduction to research methods / 
Lawrence R. Frey, Carl H. Botan, Gary L. Kreps. 
 - 2nd  ed. 
 - Boston :  Allyn & Bacon,  2000. 
 - xiv, 514  p. 
<br/><br/><label>ISBN: </label>0205198260 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication--Research--Methodology.