Purtill, Richard L.,  1931-2016. <br/><br/>
Logic for philosophers 
[by] Richard L. Purtill. 
 - New York,  Harper & Row  [1971] 
 - xxii, 419 p.  illus.  25 cm. 
 - Sources in contemporary philosophy .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>70127341 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>LC Class. No.: </label>BC71  / .P86 
<br/><br/><label>Dewey Class. No.: </label>160