Berlin, Isaiah, 1909-1997. Two concepts of liberty : an inaugural lecture delivered before the University of Oxford on 31 October 1958 / by Isaiah Berlin. - Oxford : Clarendon Press, 1958 [Reprinted 1963] - 57 p. ; 22 cm. Subjects--Topical Terms: Liberty. Dewey Class. No.: 323.4 / BET 1963