Unger Roberto Mangabeira False necessity Anti-necessitarian social theory in the Service of Radical Democracy Unger Roberto Mangabeira - Cambridge Cambridge University Press 1987 - viii,653p cm. - Polities, a Work in Constructive Social Theory. Pt. 1 . ISBN: 0521329752 Source: General Book Subjects--Topical Terms: Political Sociology Dewey Class. No.: Y9(W), M7