Popper, Karl R. Objective knowledge an evolutionary approach [by] Karl R. Popper. - Oxford Clarendon Press 1972. - x, 380 p. 22 cm. Includes bibliographical references. ISBN: 0198243707 LCCN: 73153471 Nat. Bib. No.: B*** Subjects--Topical Terms: Knowledge, Theory ofInduction Logic LC Class. No.: BD161 / .P727 Dewey Class. No.: 121