Detmold, M. J.. Unity of Law and Morality: A Refutation of Legal Positivism / - 1st Edn. / - London : Routledge & Kegan Paul Plc , 1990 - xix, 271p : ISBN: 0 7102 0030 7 Subjects--Topical Terms: Rules Dewey Class. No.: Zo2Y:425 / M4