Wilson, Graham K. <br/><br/>
Interest groups in the United States / 
Graham K. Wilson. 
 - Oxford :  New York :  Clarendon Press ;  Oxford University Press,  1981. 
 - ix, 161 p. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliogr.: p. [154]-158. 
<br/><br/><label>ISBN: </label>0198274254 0198760957 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pressure groups--United States
<br/><br/><label>Dewey Class. No.: </label>322.4/3/0973