Investigating communication :  an introduction to research method / 
Lawrence R. Frey ... [et al.]. 
 - N. J. :  Prentice Hall,  c1991. 
 - xiv, 401p. : ill. ; 24 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0135034264 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication--Research--Methodology.