Heywood, andrew. 1901-1984. Political theory : An introduction / by Andrew Heywood. - 4th ed. - New York : Palgrave, c2015. - xxii, 417 p. ; 23 cm. Includes Bibliography and index. ISBN: 9781137437266 Subjects--Topical Terms: Political science. Dewey Class. No.: 320.01 / HEP