Lehrer, Keith Knowledge / Keith Lehrer. - Oxford : Clarendon Press, 1974. - xiv, 256 p. ; 23 cm. - Clarendon library of logic and philosophy . - 121 . Includes bibliogr. references and index. ISBN: 0198244061 Subjects--Topical Terms: Belief and doubtKnowledge, Theory of Dewey Class. No.: 121