Frankena, William K. Ethics. - Englewood Cliffs, N.J. : Prentice-Hall, [1963] - 109 p. ; 23 cm. - Prentice-Hall foundations of philosophy series . LCCN: 63010527 Subjects--Topical Terms: Ethics. LC Class. No.: BJ1012 / .F7 Dewey Class. No.: 170