Frey, Lawrence R. <br/><br/>
Investigating communication :  an introduction to research methods / 
Lawrence R. Frey ... [et al.] 
 - Englewood Cliffs, N.J. :  Prentice Hall,  c1991 
 - 401 p. 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0135034264 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMMUNICATION--RESEARCH--METHODOLOGY
<br/><br/><label>LC Class. No.: </label>P91  / F739I