Castles, Francis Geoffrey, <br/><br/>
Pressure groups and political culture  a comparative study 
by Francis G. Castles. 
 - London  Routledge & Kegan Paul  1967. 
 - xiv, 112 pages ;   20 cm. 
 - Library of political studies .
<br/><br/>p. 109-112. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Pressure groups<br/> Political culture