Krippendorff, Klaus. <br/><br/>
Content analysis:  an introduction to its methodology,/ 
Klaus Krippendorff. 
 - Beverly Hills:  Sage Publications,  1980. 
 - 189 p. :  23 cm. 
 - The Sage commtext series  5. .
<br/><br/><label>ISBN: </label>0803914970 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Content analysis (Communication).