Hennessy, Bernard C. <br/><br/>
Public opinion / 
Bernard Hennessy ; with the assistance of Erna Hennessy. 
 - 4th ed. 
 - Monterey, Ca. :  Brooks/Cole Publishing Co.,  1981. 
 - 306p. :  ill. ;  24 cm. 
<br/><br/> Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0818504498 
<br/><br/><label>LCCN: </label>80-27733 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public opinion.