Lewis, Clarence Irving, 1883-1964. Values and imperatives; studies in ethics. Edited by John Lange. - Stanford, Calif., Stanford University Press, 1969. - xv, 201 p. 23 cm. Bibliographical footnotes. Source: 7.50 LCCN: 69013181 Subjects--Topical Terms: Ethics. LC Class. No.: BJ1012 / .L48 1969 Dewey Class. No.: 170