Logic for philosophers /
Purtill, Richard L., 1931-
Logic for philosophers / [by] Richard L. Purtil - New York : Harper & Row, [1971] - xxii, 419 p. : ill. ; 25 cm. - Sources in contemporary philosophy .
Includes bibliographical references.
Logic.
160
Logic for philosophers / [by] Richard L. Purtil - New York : Harper & Row, [1971] - xxii, 419 p. : ill. ; 25 cm. - Sources in contemporary philosophy .
Includes bibliographical references.
Logic.
160