Pears, David Francis. What is knowledge? / [by] David Pears. - London : Allen and Unwin, 1972. - Essays in philosophy . Bibliography: p. [105]-106. ISBN: 0041210166 L.1.25 LCCN: 73330637 Nat. Bib. No.: B72-23315 Subjects--Topical Terms: Knowledge, Theory of. LC Class. No.: BD161 / .P4 1972 Dewey Class. No.: 121