Frey, Lawrence R. <br/><br/>
Investigating communication :  An introduction to research methods / 
L.R. Frey, C.H. Botan, G.L. Kreps. 
 - 2nd ed. 
 - Boston :  Allyn and Bacon,  2000. 
 - 514 p. :  ill., charts ;  24 cm 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0-205-19826-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication-Research-Methodology