Castles, Francis G. 1943- Pressure groups and political culture : a comparative study / by Francis G. Castles. - London : Routledge & Kegan Paul, 1967. - xiv, 112 p. ; 20 cm. - Library of political studies . Bibliography: p. 109-112. Subjects--Topical Terms: Pressure groups. Political culture. Dewey Class. No.: 329.03 / CAP 1967