Sartorius, Michael. The principle of liberty / [Michael Sartorius]. - 1st ed. - Ringmer : Arton, 1994. - 149 ;: ill., maps ; 23 cm. ISBN: 0952233010 (pbk) Subjects--Topical Terms: Political scienceLibertyNatural law--History LC Class. No.: JC585 Dewey Class. No.: 320/.01/1