Putnam, Hilary. Philosophy of logic. - New York : Harper & Row, [1971] - 76 p. ; 21 cm. - Harper essays in philosophy. Harper torchbooks, TB1544. . ISBN: 0061360422(pbk) LCCN: 71149364 Subjects--Topical Terms: Logic. LC Class. No.: BC51 / .P88 1971 Dewey Class. No.: 160